case study questions class 7 science chapter 1

• Nutrition in Plants Class 7 Case Study Questions Science Chapter 1

Last Updated on April 5, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 7 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 science. In this article, you will find case study questions for cbse class 7 science chapter 1 Nutrition in Plants.

Table of Contents

Case Study Questions on Nutrition in Plants

Question 1:

Read the given passage below and answer the question:

Carnivorous plant is especially adapted for capturing and digesting insects and other animals by means of ingenious pitfalls and traps. There are more than 600 known species of carnivorous plants. The apparent trapping mechanism, which is always a modified leaf is a distinctive feature to these plants. The pitcher plant is an example of a carnivorous plant. The leaf of the Pitcher plant is modified into pitcher like structure to trap the insects. The apex of the leaf acts like a lid which can open and close the mouth of the pitcher.

Q.1. Insect eating carnivorous plants are also called ________plant. (a) autotrophic (b) saprophytic (c) insectivorous (d) symbiotic

Difficulty Level: Easy

Ans. Option (c) is correct. Explanation: Carnivorous plants eat insects for their food requirements, so they are called insectivorous plants.

Q.2. One of the most important nutrients a pitcher plant need from insects is: (a) Carbon dioxide (b) Nitrogen (c) Water (d) Oxygen

Ans. Option (b) is correct. Explanation: Pitcher plants grow in soil that is deficient in nitrogen content so they feed on insects to obtain the nitrogen.

Q.3. Consider the following statements about the Pitcher plant: (A) It is a parasite. (B) The leaves are green in colour. (C) The hair present inside the lid is directed downward. (D) Digestive juice is secreted in the apex of the leaf. The correct statements are: (a) (A) and (B) (b) (B) and (C) (c) (C) and (D) (d) (A), (B) and (D)

Difficulty Level: Difficult

Ans. Option (b) is correct. Explanation: Pitcher plant is not a parasite. The plants are grouped under carnivorous plants as they feed upon insects. The digestive juices secreted in the pitcher, the modified part of leaf.

Q.4. What type of mode of nutrition is found in pitcher plants?

Ans. The pitcher plants have chlorophyll so they perform photosynthesis to produce their own food however, they grow in soil that lacks nitrogen content so, they feed on insects to obtain the nitrogen needed for their growth. Hence, they have both autotrophic as well as a partial heterotrophic mode of nutrition.

Q.5. How does a pitcher plant catch insects? (Medium)

Difficulty Level: Medium

Ans. When the insects land in the pitcher its lid closes and the insects are trapped and entangled into the hair. Digestive juices are secreted in the pitcher so the insects get digested and nutrients get absorbed.

Heat Class 7 Case Study Questions Science Chapter 3

Nutrition in animals class 7 case study questions science chapter 2, topics from which case study questions may be asked.

• Define nutrients.
• Discuss the mode of nutrition in plants.
• Describe the process of photosynthesis.
• List the things required for the process of photosynthesis.
• Discuss what are saprotrophs.
• Describe the symbiosis relationship.
• Discuss the nutrients replenishment in soil.

For further practice on case study questions related to Class 7 Science Chapter 1 Nutrition in Plants, we recommend exploring the link given below.

Frequently Asked Questions (FAQs) on Nutrition in Plants Case Study Questions

Q1: what are case study questions for cbse examinations.

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 7 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of plant nutrition, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 7 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our  website  to access these questions and enhance your learning experience.

Q5: How can students effectively prepare for case study questions on nutrition in plants for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on nutrition in plants class 7 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of nutrition in plants.

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Cbse, ncert and icse solution online, class 7 science case study question, case study question class 7 science (cbse / ncert board).

Class 7 Science Case Study Question and Answer: CBSE / NCERT Board Class 7 Science Case Study Question prepared by expert Science Teacher. Students can learn Case Based Question / Paragraph Type Question for NCERT Class 7 Science.

There are total 18 chapter Nutrition in Plants, Nutrition in Animals, Fibre to Fabric, Heat, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Winds, Storms and Cyclones, Soil, Respiration in Organisms, Transportation in Animals and Plants, Reproduction in Plants, Motion and Time, Electric Current and Its Effects, Light, Water: A Precious Resource, Forests: Our Lifeline, Wastewater Story

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CBSE Class 7 Science Case Study Question

• Chapter 1 Nutrition in Plants Case Study Question
• Chapter 2 Nutrition in Animals Case Study Question
• Chapter 3 Fibre to Fabric Case Study Question
• Chapter 4 Heat Case Study Question
• Chapter 5 Acids, Bases and Salts Case Study Question
• Chapter 6 Physical and Chemical Changes Case Study Question
• Chapter 7 Weather, Climate and Adaptations of Animals to Climate Case Study Question
• Chapter 8 Winds, Storms and Cyclones Case Study Question
• Chapter 9 Soil Case Study Question
• Chapter 10 Respiration in Organisms Case Study Question
• Chapter 11 Transportation in Animals and Plants Case Study Question
• Chapter 12 Reproduction in Plants Case Study Question
• Chapter 13 Motion and Time Case Study Question
• Chapter 14 Electric Current and Its Effects
• Chapter 15 Light
• Chapter 16 Water: A Precious Resource
• Chapter 17 Forests: Our Lifeline
• Chapter 18 Wastewater Story

What is Case Study Question?

Ans. At case Study there will one paragraph and on the basis of that concept some question will made. Students have to solve that question.

How many marks will have at case based question?

Most of time 5 questions will made from each case. There will 1 or 2 marks for each question.

Important links:

• Lakhmir Singh Class 7 Solution
• NCERT Class 7 Math Solution

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• NCERT Solutions for Class 7 Science Chapter 1 - Nutrition In Plants
• NCERT Solutions

NCERT Class 7 Science Chapter 7: Complete Resource for Nutrition in Plants

NCERT Class 7 Science Chapter 1 is based on different modes of nutrition in plants. Experts at Vedantu have made NCERT Solutions for Class 7 Science Chapter 1 PDF available for students that will help them build a strong base on plant nutrition. The questions are selected covering topics of Science Class 7 Chapter 1 in a precise manner. Provided solutions are equally effective for a student and it's accessible from anywhere. You can also download NCERT Solutions for Class 7 Maths to revise the complete syllabus and score well in your examinations.

With Vedantu Learning App on your mobile, you will get to attend FREE LIVE Master - Classes and FREE Conceptual videos. Not only that, but you will also have access to all the FREE PDFs of study materials and NCERT Solutions to enhance your problem-solving ability.

NCERT Class 7 Science Chapter 1 is visually appealing as it exposes you to the world of plants. The curriculum includes a range of tasks that will encourage kids to love studying. You will like studying this chapter since the curriculum introduces you to new vocabulary and concepts.

In the Class 7 Nourishment in Plants Chapter, students will learn about many new topics linked to plants and how they obtain nutrition for themselves. They will also learn about photosynthesis, chlorophyll, stomata, etc. Plants with different forms of sustenance, such as insectivorous plants are also discussed in this chapter.

This chapter will cover the fundamentals of plant nutrition and how plants create their food, but reading it attentively will help students comprehend botany principles at a deeper level. As a result, it is strongly advised that students should make notes so that they may revise them while preparing this chapter for the exam.

Access NCERT Solutions for Science Chapter 1– Nutrition in Plants

Q1. Why do organisms need to take food?

Ans:  

Organism needs food to:-

Gain energy

Damage repair

Maintain bodily functions

Other activities

Q2. Distinguish between a parasite and saprophyte.

Ans: Differences between parasites and saprophytes are as follows:

Q3. How would you test the presence of starch in leaves?

Ans: When starch reacts with an iodine solution, it takes on a characteristic dark blue colour. If a few drops of iodine solution are applied to a leaf and a dark blue colour develops, the existence of starch in the leaf is confirmed.

Q4. Give a brief description of the process of synthesis of food in green plants.

Ans: In green plants, the synthesis of food occurs by a process called photosynthesis. During this process, chlorophyll in the cells of the leaves uses carbon dioxide and water to synthesize carbohydrates in the presence of sunlight. The process can be represented by an equation:

\[Carbon\:dioxide\:+\:\:Water\:\xrightarrow[Chlorophyll]{Sunlight}\:Carbohydrates\:+Oxygen\]

 (image will be uploaded soon)

During this process, oxygen is released, and the carbohydrates generated are stored as starch.

Q5. Show with the help of a sketch that the plants are the ultimate source of food. 

(image will be uploaded soon)

6. Fill in the blanks:

Green plants are called ----------- since they synthesize their own food.b. The food synthesized by the plants is stored as ---------------. 

Ans: Green plants are called autotrophs since they synthesize their own food.

The food synthesized by the plants is stored as ---------------. 

Ans: The food synthesized by the plants is stored as starch.

In photosynthesis, solar energy is captured by the pigment called------------.

Ans: In photosynthesis, solar energy is captured by the pigment called chlorophyll.

During photosynthesis plants take in ------------- and release -------------. 

Ans: During photosynthesis, plants take in carbon dioxide and release oxygen.

Q7. Name the following: 

A Parasitic plant with a yellow, slender, and tubular stem.

Ans: Cuscuta- The Cuscuta plant is classified as a parasite since it lacks chlorophyll and feeds on the host. The host loses vital nutrients as a result of this process.

A plant that has both autotrophic and heterotrophic modes of nutrition.

Ans: Pitcher plant - The pitcher plant is an autotrophic plant that performs photosynthesis, but it also has a partly heterotrophic method of nutrition because it grows in nitrogen-deficient soil.

The pores through which leaves exchange gases.

Ans: Stomata- Gases such as carbon dioxide, water vapour, and oxygen can diffuse into and out of the plant's interior tissues through stomata.

Q8. Tick the Correct Answer: 

a. Amarbel is an example of:

Ans: (ii) Parasite- 

Cuscuta or Dodder are other names for Amarbel. A parasite is an organism that grows on the body of another organism and feeds on its nutrition.

b. The plant which traps and feeds on insects is:

Pitcher plant 

Ans: (iii) Pitcher plant

The pitcher plant is a type of plant with trapping and digesting leaves. Medicine is made from the leaf and roots.

Q9. Match the item in given column I with those in column II.

Q10. Mark “T” if the statement is true and “F” if it is false:

Carbon dioxide is released during photosynthesis. (T/F) 

Ans: False- Oxygen is released during photosynthesis.

Plants that synthesize their food themselves are called saprotrophs. (T/F) 

Ans: False- Plants which synthesize their food themselves are called autotrophs. 

The product of photosynthesis is not a protein. (T/F)

Ans : True- The product of photosynthesis is not a protein.  

Solar energy is converted into chemical energy during photosynthesis. (T/F)

Ans: True- Solar energy is converted into chemical energy during photosynthesis.

Q11. Choose the Correct Option From the Following:

Which part of the plant gets carbon dioxide from the air for photosynthesis?

Stomata 

Sepals 

Ans: (b) Stomata get carbon dioxide from the air for photosynthesis.

Q12. Choose the correct option from the following:

Plants take carbon dioxide from the atmosphere mainly through their:

Roots 

Ans: (d) Plants take carbon dioxide from the atmosphere mainly through their leaves.

NCERT Solutions for Class 7 Science- Free PDF Download

Nutrition in plants Class 7 NCERT is a conceptual chapter for the students of Class 7. Vedantu provides all Class 7 Science Chapter 1 Solutions in PDF format for students to get easy access. These solutions have the entire Ch 1 Science for Class 7 covered and will help students to score better marks in Science exams.

Important Topics Covered in NCERT Solutions for Chapter 1 of Class 7 Science- Nutrition in Plants 

In Class 7 Chapter 1 Nutrition in Plants, students will learn many concepts related to plants and how they get nutrition for themselves. Other important topics that students will learn about are as follows:

NCERT Solutions for Class 7 Science Chapter 1 – Nutrition in Plants

NCERT Solutions for CBSE Class 7 Science Chapter 1 Nutrition in Plants will help the students to answer the NCERT questions in a more appropriate way  so as to score better marks in the examination. The free PDF will also allow them to access this important study resource from anywhere and anytime, which will help them build a strong foundation on the above-mentioned concepts at their convenient time. 

Therefore, students are advised to thoroughly study NCERT Solutions for CBSE Class 7 Science Chapter 1 Nutrition in Plants to aid their preparation for the exams. 

1.1 Mode of Nutrition in Plants

Plants have the unique ability to produce their own food, setting them apart from other living beings.

They utilize sunlight, minerals, water, and carbon dioxide present in their surroundings to prepare their food.

The process by which plants convert these raw materials into food is known as photosynthesis.

During photosynthesis, plants use chlorophyll, a green pigment found in their cells, to capture sunlight energy.

The captured sunlight energy is then used to convert carbon dioxide and water into glucose, a form of sugar.

Glucose serves as the primary source of energy for the plant's growth, development, and metabolic processes.

Along with glucose, plants also produce oxygen as a byproduct of photosynthesis, which is released into the atmosphere.

The minerals absorbed by plants from the soil play a crucial role in their growth, as they provide essential nutrients necessary for various cellular activities.

These nutrients not only support plant growth but also aid in repairing damaged body parts.

Through their autotrophic mode of nutrition, plants demonstrate their self-sufficiency in obtaining energy and nutrients from their environment.

1.2 Photosynthesis- Food Making Process in Plants

Leaves are considered food factories in plants, synthesizing food for all parts of the plant.

Different body parts transport raw materials to the leaves.

Roots absorb water and minerals from the soil and transport them to the leaves through vessels.

Stomata, tiny pores on the leaves, absorb carbon dioxide, and their opening and closing are controlled by guard cells.

Chlorophyll, present in all leaves, is responsible for the green color and traps sunlight for photosynthesis.

Photosynthesis is the process by which plants produce food using sunlight, carbon dioxide, and water.

Photosynthesis is essential for maintaining life on Earth as it provides food for plants, which is the basis of the food chain.

During photosynthesis, chlorophyll uses sunlight, water and carbon dioxide to produce carbohydrates.

The equation for photosynthesis is : 

$\text{Carbon dioxide + water }\xrightarrow[\text{Sunlight}]{\text{Chlorophyll}}\text{ Carbohydrate + oxygen}$

Oxygen is released as a byproduct of photosynthesis, and the carbohydrate formed is converted to starch.

Starch in leaves indicates the occurrence of photosynthesis.

Plants with yellow, red, or multicolored leaves also perform photosynthesis as chlorophyll is present in these leaves.

Algae in stagnant water bodies, indicated by green slimy patches, also perform photosynthesis using chlorophyll.

Cells, the building blocks of every living body, play various functions, including gaseous exchange during photosynthesis.

Stomata control gaseous exchange, and their opening and closing are regulated by guard cells.

1.3 Other Modes of Nutrition in Plants

Not all plants contain chlorophyll:

Some plants, like Cuscuta, do not have chlorophyll.

Cuscuta is a yellow tubular plant that twines around the stems of other plants.

Heterotrophic nutrition in non-chlorophyll-containing plants:

Plants without chlorophyll obtain their food through heterotrophic nutrition.

They acquire nutrients from other living organisms.

Host-parasite relationship:

Non-chlorophyll-containing plants rely on a host plant to obtain nutrients.

When these plants deprive the host of its valuable nutrients, they are called parasites.

Plants as parasites:

We often associate parasites with insects and animals, but plants can also be parasites.

Non-chlorophyll-containing plants that depend on other organisms for nutrition are considered parasitic.

Insectivorous plants:

Some plants, like the pitcher plant, have pitcher-shaped structures formed from modified leaves.

The pitcher plant captures insects (prey) when they fall into the pitcher.

Hairs directed downwards inside the pitcher prevent the insects from escaping.

These plants are known as insectivorous plants as they consume insects for nutrition.

1.4 Saprotrophs

Mushroom's Nutritional Mode: Unlike plants, mushrooms do not contain chlorophyll and cannot perform photosynthesis. Instead, they obtain their food through a process known as saprophytic nutrition. This involves secreting digestive juices and chemicals onto decaying or dead organic matter, extracting nutrients from them. Mushrooms are considered saprotrophs in this nutrition mode.

Fungi Growth on Various Surfaces: Fungi can be found growing on different surfaces such as leather, pickles, bread, and other materials that are kept in hot and humid conditions for extended periods. These fungi thrive on the presence of moisture and organic matter, aiding in their growth and decomposition process.

Fungi in Rainy Seasons: Rainy seasons often see an increase in the population of saprotrophic fungi. These fungi play a role in the spoilage of food and clothing during this time. Fungal spores, which can travel through the air, settle on wet surfaces and germinate, leading to fungal growth and the subsequent spoilage of items.

Symbiotic Relationships: In certain relationships between organisms, both parties benefit from their association. One example is the close association between certain fungi and plant roots. These fungi, known as mycorrhizae, derive nutrients from the plants while providing them with nitrogen in return. This mutualistic relationship benefits both organisms involved.

Lichens: Lichens are another example of a symbiotic relationship involving fungi. In lichens, fungi and algae coexist. The algae produce food through photosynthesis, while the fungus provides water, minerals, and a protective structure for the algae. This partnership allows both organisms to thrive in various environments.

1.5 How Nutrients are Replenished in the Soil

If plants use all the minerals and nutrients from the soil, the levels of these nutrients in the soil are supposed to go down. To replenish the nutrient content of the soil, farmers often add manures and fertilizers to the soil. In this way, the nutrients are replenished, and it will support the continued growth of plants on this soil.

In general, soils require plenty of nitrogen for their growth. After each harvest, the soil gets devoid of nitrogen. To have further plantation on these soils, farmers often grow leguminous crops that can increase the nitrogen content of the soil. These leguminous crops like pulses, grams, dal, etc. are in a symbiotic relationship with a bacteria called rhizobium, which fixes atmospheric nitrogen into the soil. The bacteria obtain food and shelter in return from the plants. Growing leguminous crops in the field reduces the need to add nitrogen-containing artificial fertilizers to the soil.

In this CBSE Class 7 Science Chapter 1 nutrition in plants, you learned about plants that are autotrophs. You also learned about different nutrition modes amongst plants like heterotrophic, saprophytic, parasitic, insectivorous and symbiotic.

Facts that Matter

All organisms take food and utilize it to get energy for growth, maintenance and various life processes.

Based on the mode of getting food, organisms are classified as autotrophs and heterotrophs.  

Autotrophs prepare their own food using simple inorganic materials like carbon dioxide and water. 

The essential requirements for photosynthesis are chlorophyll and sunlight.

Heterotrophs are organisms that cannot make food on their own and so they depend on autotrophs directly or indirectly for food.

Parasitic, saprophytic, insectivorous and symbiotic are the different modes of heterotrophic nutrition in plants.

Plants like Cuscuta are parasites as they take nutrition from the host plant.

Saprotrophs like Fungi obtain nutrition from dead and decaying organic matter. 

Symbiotic relationship between Rhizobium and legumes helps in enriching the soil of the nitrogen that was lost.

Leaves of the plants prepare the food so they are called the food factory of the plant.

The important components of food are carbohydrates, fats, proteins, vitamins and minerals. 

The Sun is the fundamental source of energy for all living organisms.

NCERT Solutions Class 7 Science Other Chapters

Chapter 2 - Nutrition in Animals

Chapter 3 - Fibre to Fabric

Chapter 4 - Heat

Chapter 5 - Acids

Chapter 6 - Physical and Chemical Changes

Chapter 7 - Weather

Chapter 8 - Winds

Chapter 9 - Soil

Chapter 10 - Respiration in Organisms

Chapter 11 - Transportation in Animals and Plants

Chapter 12 - Reproduction in Plants

Chapter 13 - Motion and Time

Chapter 14 - Electric Current and Its Effects

Chapter 15 - Light

Chapter 16 - Water: A Precious Resource

Chapter 17 - Forests: Our Lifeline

Chapter 18 - Wastewater Story

Additional Materials for CBSE Class 7 Science 

CBSE Class 7 Important Questions

CBSE Class 7 Revision Notes

CBSE Class 7 Exemplar Solutions

Key Features of NCERT Solutions for Class 7 Science Chapter 1

Scoring good marks in the exam is essential for every student. To do so, students must have a clear idea about the subject. The next step would be to learn the solutions to important questions related to the subject. Experts at Vedantu have made Class 7th Science Chapter 1 solutions in a format that’s simple and easy to understand. Students can get benefits given below:

Subject matter experts have designed the Ch 1 Science Class 7 Solutions. That is why the NCERT Class 7th Science Chapter 1 Solutions can be considered as the most comprehensive, easy-to-understand, and to-the-point study materials for the students.

Students have the unique facility of asking the experts whenever they face any problem. 

NCERT solution for Class 7 Science Chapter 1 has arranged all the concepts and equations in a proper sequence, thus saving the time for the students while they study.  

The students are encouraged to perform several Science experiments to understand the concepts.

Since NCERT Class 7 Science Chapter 1 Nutrition in Plants can be downloaded, it allows the students to read and revise the concepts at their convenience.

CBSE Class 7 Science Chapter 1 Nutrition in Plants PDF becomes more helpful when students plan for a quick revision before the examination.

The NCERT solution for Class 7 Science Chapter 1 solutions promises a significant increase in marks for the students.

FAQs on NCERT Solutions for Class 7 Science Chapter 1 - Nutrition In Plants

1. How does the fungus get its nutrition?

Fungus is a saprotroph. Its mode of nutrition is called the saprotrophic mode of nutrition. It takes its food from dead and decaying organic matter. The digestive juices of fungus convert the dead materials into a soluble form that gets absorbed.

2. Explain the process of how nutrients are replenished in the soil.

The plants absorb mineral nutrients from the soil. The fertilizers and manures containing various nutrients like nitrogen, potassium, and phosphorus need to be added from time to time to enrich the soil. Nitrogen gas is available in large amounts but plants cannot use it directly from the air. The bacterium Rhizobium lives in the roots of the leguminous plants. Rhizobium bacteria convert the non-usable form of nitrogen. In this way, the nutrients are replenished in the soil by using fertilizers and manures, and by sowing leguminous plants.

3. Explain the mechanism of eating insects by a pitcher plant.

The leaves of the pitcher plants are tailored into a pitcher-like structure. The tip of the leaves forms a lid that can open and close the mouth of the pitcher-like structure of the leaves. There is hair inside the pitcher, which is directed downwards. When an insect lands in the pitcher, it gets entangled in the hair. The pitcher secretes some digestive juices that help the plant digest the insect. Such insects eating plants are insectivorous plants. These plants do not get all the necessary nutrients from the soil. So, they are called partial heterotrophs.

4. Summarize briefly Chapter 1 of Class 7th Science NCERT Textbook?

In Class 7 Chapter 1 Nutrition in Plants, students are introduced to topics related to plants and how they get nutrition for themselves. The concepts covered in these topics include the photosynthesis process, chlorophyll and stomata. The chapter also teaches other modes of nutrition in insectivorous plants. 

Students also learn how nutrients are replenished in the soil and how atmospheric nitrogen is fixed in the soil through a bacterium called Rhizobium.

5. Why should we grow crops inside greenhouses?

Factors like diseases, rodents, wind, and adverse climatic conditions cannot affect the crops grown in greenhouses. Therefore, growing crops  in greenhouses is beneficial for the farmers in the long run.

6. How can I download the Solutions of Chapter 1 of Class 7th Science NCERT Textbook?

The solutions are easily available on the Vedantu site. 

Click on NCERT Solutions of Class 7 Science and choose Chapter 1.

The webpage with Vedantu’s solutions for Chapter 1 of Class 7th Science NCERT Textbook will open.

To download this, click on the Download PDF button and you can view the solutions offline. 

For other solutions and concept-related modules on other topics or subjects, visit the Vedantu and go through the related modules. The solutions are free of cost and also available on the Vedantu Mobile app.

8. What do you understand by photosynthesis according to Chapter 1 of Class 7th Science NCERT Textbook?

During photosynthesis, the light energy is converted into chemical energy by green plants and other organisms. Chloroplasts are tiny particles found inside plant cells that perform photosynthesis. Plants absorb carbon dioxide from the air and water from the earth via their roots. The Sun gives out light energy. The leaves release the oxygen that has been generated into the air. Since it is an important topic, do understand it properly along with all its components such as chloroplasts and so on.

NCERT Solutions for Class 7 Science Chapter 1 Nutrition In Plants

Table of Contents

NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants

The NCERT Solutions for Class 7 Science Chapter 1, Nutrition in Plants, provide a comprehensive understanding of how plants obtain their nutrients. This chapter is an essential part of the CBSE Class 7 Science syllabus and introduces students to the concept of photosynthesis , the process by which plants prepare their food using sunlight, water, and carbon dioxide . It also covers different modes of nutrition in plants, including autotrophic and heterotrophic nutrition, and explains the role of chlorophyll, stomata , and other plant parts in the process of photosynthesis.

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Infinity Learn offers detailed NCERT solutions for Class 7 Science Chapter 1, helping students grasp the fundamental concepts of plant nutrition. These NCERT solutions are prepared by experienced educators and are designed to provide step-by-step explanations for all the questions in the NCERT textbook . By studying these solutions, students can gain a clear understanding of the topic and perform well in their exams. These NCERT solutions class 7 are provided so a student can clear his doubts and get help with a deep understanding of the concept. Also, you can refer them to make the chapter notes and revisions notes. PDF of this can also be downloaded from the website.

NCERT Solutions Class 7 Science Chapter 1 Download Free PDF

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Access NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants Exercise Questions and Answers

Exercise page no. 09.

1. Why do organisms need to take food? Ans. Living organisms need to take food for : i) getting energy and survival. ii) growth and development of the body. iii) the maintenance of their bodies. 2. Distinguish between a parasite and a saprotroph. Ans.

ii) parasite b) The plant which traps and feeds on insects is : i) Cuscuta ii) China rose iii) pitcher plant iv) rose Ans.

iii) pitcher plant Match the items given in Column I with those in Column II :

10. Mark ‘T’ if the statement is true and ‘F’ if it is false.

(i) Carbon dioxide is released during photosynthesis. (T/F)

(ii) Plants which synthesise their food are called saprotrophs. (T/F)

(iii) The product of photosynthesis is not a protein. (T/F)

(iv) Solar energy is converted into chemical energy during photosynthesis. (T/F)

(iv) T 11. Choose the correct option from the following : Which part of the plant takes in carbon dioxide from the air for photosynthesis? i) root hair ii) stomata iii) leaf veins iv) sepals Ans.

ii) stomata 12. Choose the correct option from the following : Plants take carbon dioxide from the atmosphere mainly through their: i) roots ii) stem iii) flowers iv) leaves Ans.

NCERT Solutions for Class 7 Science Other Chapters

• Chapter 2 Nutrition in Animals
• Chapter 3 Fibre to Fabric
• Chapter 4 Heat
• Chapter 5 Acids, Bases, and Salts
• Chapter 6 Physical and Chemical Changes
• Chapter 7 Weather, Climate, and Adaptations of Animals to Climate
• Chapter 8 Winds, Storms, and Cyclones
• Chapter 9 Soil
• Chapter 10 Respiration in Organisms
• Chapter 11 Transportation in Animals and Plants
• Chapter 12 Reproduction in Plants
• Chapter 13 Motion and Time
• Chapter 14 Electric Current and Its Effects
• Chapter 15 Light
• Chapter 16 Water: A Precious Resource
• Chapter 17 Forests: Our Lifeline
• Chapter 18 Wastewater Story

Important topics covered in these NCERT Solutions Class 7 Science Chapter 1 Nutrition in Plants

• Mode of Nutrition in Plants
• Photosynthesis – food making process in Plants
• The alternative mode of nutrition in Plants
• Saprophytes
• Nutrient replenishment in the soil

Class 7 Science chapter 1 Nutrition in Plants is interesting as it introduces students to the world of plants around us. The CBSE syllabus covers several projects that will help students to enjoy this learning process. The curriculum also deal with new terminology and concepts, which help to look forward for this Chapter. In this Chapter, students came to know about many new concepts which deals with plants and how they get nutrition for themselves, they also deal with about photosynthesis-process of preparation of food in plants, chlorophyll, stomata. Several other modes of nutrition in plants like insectivorous plants. This chapter deal with the basic of plants nutrients, how plants make their food, but studying this Chapter in depth will further help the students to understand the concepts of botany in higher standards. Therefore student must prepare to note so that they can quickly revise the notes while revising the Chapter for the exams. Students can also use these NCERT Solution for any quick references to comprehend complex topics.

Why to Choose Infinity Learn NCERT Solutions for Class 7 Science Chapter 1

Infinity Learn mission is to create world-class learning content for students. We are focussed on raising the students learning abilities. These Solutions have been structured very carefully to give several benefits to the students that utilize these study materials. That is why, these are crafted by subject matter experts to focus on concept and its explanation. For any type of support related to the NCERT Solutions for Class 7 given here, students can approach our support team who will help clear all their doubts. Students can also check out Infinite Learn for a more efficient learning experience. NCERT Books for Class 7 – Free PDF Download for 2023-24

FAQs on NCERT Solutions Class 7 Science Chapter

What is nutrition class 7 science chapter 1.

Nutrition in Class 7 Science Chapter 1 refers to the process by which plants and other organisms obtain and utilize food for energy, growth, and maintenance.

What is the first chapter of science class 7?

The first chapter of Science Class 7 is Nutrition in Plants, which covers how plants obtain nutrients through various processes, including photosynthesis.

How do plants get nutrition?

Plants get nutrition primarily through photosynthesis, where they use sunlight, carbon dioxide, and water to produce glucose and oxygen. Some plants also obtain nutrients from the soil.

What are the nutrients in plants?

Nutrients in plants include carbohydrates, proteins, fats, vitamins, minerals, and water. These are essential for the plant's growth and development.

What are green plants called?

Green plants are called autotrophs or producers because they can produce their own food through the process of photosynthesis.

Where to Download class 7 science chapter 1 solutions?

You can download Class 7 Science Chapter 1 solutions from the Infinity Learn website. These solutions provide detailed explanations for a better understanding of the chapter.

How can I download NCERT Solutions from Infinity Learn app?

To download NCERT Solutions from the Infinity Learn app, install the app, sign in, navigate to NCERT Solutions, select your class and subject, choose the chapter, and download the solutions in PDF format.

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NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants

Chapter 1 Nutrition in Plants Class 7 Science NCERT Solutions

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Extra Questions for Class 7 Science Chapter 1 Nutrition in Plants

Extra questions for Class 7 Science Chapter 1 Nutrition in Plants with answers is given below. Our subject expert prepared these solutions as per the latest NCERT textbook. These questions will be helpful to revise the all topics and concepts. CBSE Class 7 extra questions are the most simple and conceptual questions that are prepared by subject experts for the students to study well for the final exams. By solving these extra questions, students can be very efficient in their exam preparations.

Nutrition in Plants Class 7 Science Extra Questions and Answers

Very short extra questions and answer.

1. Define parasites.

Answer: Parasites they are those organisms which grow on other plants or animals for their food, e.g. Cuscuta.

2. Name the bacteria that can fix atmospheric nitrogen.

Answer: Rhizobium is the bacterium which can fix atmospheric nitrogen.

3. Name a parasitic plant with yellow, slender and tubular stem.

Answer: Cuscuta

4. Give one example of parasite.

Answer: Amarbel

5. Name one plant that traps and feeds on insects.

Answer: Pitcher Plant

6. Name a plant that has both autotrophic and heterotrophic mode of nutrition.

Answer: Insectivorous Plant

7. What are fluffy umbrella-like patches growing on rotting wood during the rainy season called?

Answer: These organisms are called fungi.

8. How can cells be seen?

Answer: Most type of cells can be seen only under the microscope.

9. Where is nucleus located in a cell?

Answer: In most of the cell, nucleus is centrally located.

10. What are carbohydrates made up of?

Answer:  The carbohydrates are made of carbon, hydrogen and oxygen.

11. From where do plants get raw materials to prepare their food?

Answer:  Plants get raw materials to prepare their food from their surroundings.

12. Where does the synthesis of food in a plant usually take place?

Answer: The synthesis of food in plants occurs in leaves.

 13. What is the ultimate source of energy for all living organisms?

Answer: Sun is the ultimate source of energy for all living organisms.

14. Why do some plants feed on insects? Answer: Insectivorous plants grow in soil which lack nitrogen, therefore they eat insects to fulfill their need of nitrogen.

15. What are the components of food?

Answer: Carbohydrates, proteins, fats, vitamins and minerals are components of food.

Short Extra Questions and Answers

1. What are insectivorous plants?

Answer: Insect-eating plants such as pitcher plant are called insectivorous plants.

2. What do you mean by nutrition?

Answer: Nutrition is the mode of taking food by an organism and its utilization by the body.

3. Why photosynthesis is named so?

Answer: Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis (Photo: light; synthesis: to combine).

4. What are heterotrophs?

Answer: Animals and most other organisms take in ready-made food prepared by the plants. They are called heterotrophs (heteros = other).

5. What are stomata?

Answer: Tiny pores are present on the surface of the leaves which helps in exchange of gases. Such pores are called stomata.

6. What are called autotrophs?

Answer: Organisms able to make food themselves from simple substances are called autotrophs.

7. What is heterotrophic nutrition?

Answer: Heterotrophic nutrition is the mode of nutrition in which organisms depend upon other organisms to survive.

8. What are nutrients?

Answer: Carbohydrates, proteins, fats, vitamins and minerals are components of food. These components of food are called nutrients.

9. What is chlorophyll?

Answer: A green pigment present in all green plants which helps leaves to capture the energy of the sunlight is called chlorophyll.

10. Where and in what conditions do fungi grow?

Answer: Fungi grow on pickles, leather, clothes and other articles that are left in hot and humid weather for long time.

11. How do fungi grow and develop?

Answer: The fungal spores are generally present in the air. When they land on wet and warm things they germinate and grow.

12. Why algae are green in colour?

Answer: They contain chlorophyll which gives them the green colour. Algae can also prepare their own food by photosynthesis.

13. What are the raw materials required for photosynthesis?

Answer: Chlorophyll, sunlight, carbon dioxide and water are necessary to carry out the process of photosynthesis.

14. Do insectivorous plants perform photosynthesis?

Answer: Insectivorous plants got leaves therefore they can photosynthesis, which means they can prepare their food in the presence of sunlight.

15. What are algae?

Answer: We often see slimy, green patches in ponds or in other stagnant water bodies. These are generally formed by the growth of organisms called algae.

16. Why do organisms need to take food?

Answer: The food enables living organisms to build their bodies, to grow, to repair damaged parts of their bodies and provide the energy to carry out life processes.

17. Why plants such as pitcher plant do not get all the required nutrients from the soil in which they grow?

Answer: Plants such as pitcher plant do not get all the required nutrients from the soil in which they grow because they are deficient in nutrients such as nitrogen.

18. What is Cuscuta?

Answer:  Cuscuta is a parasitic plant. It is yellow tubular structures twining around the stem and branches. It does not have chlorophyll. It takes readymade food from the plant on which it is climbing.

19. What is the role of rhizobium bacteria in leguminous plant?

Answer: The bacterium called Rhizobium present in leguminous plant can take atmospheric nitrogen and convert it into a soluble form. Thus help in nitrogen fixation.

20. Some plants have deep red, violet or brown leaves. Do these leaves also carry out photosynthesis?

Answer: The leaves other than green also have chlorophyll. The large amount of red, brown and other pigments mask the green colour. Photosynthesis takes place in these leaves also.

21. What is so special about the leaves that they can synthesis food but other parts of the plant cannot?

Answer: The leaves have a green pigment called chlorophyll. It helps leaves to capture the energy of the sunlight. This energy is used to synthesis (prepare) food from carbon dioxide and water.

Long Extra Questions and Answers

1. How would you test the presence of starch in leaves?

Answer: Iodine solution is used to test leaves for the presence of starch.

Test – Remove chlorophyll by boiling it in alcohol and then add 2 drops of iodine solution. If the color changes to blue, indicates the presence of starch in the leaves.

2. How do plants obtain the raw materials from the surroundings?

Answer: Water and minerals present in the soil are absorbed by the roots. Carbon dioxide from air is taken in through the tiny pores present on the surface of the leaves. The leaves have a green pigment called chlorophyll. It helps leaves to capture the energy of the sunlight.

3. Explain the mode of nutrition in fungi.

Answer:  They secrete digestive juices on the dead and decaying matter and convert it into a solution. Then they absorb the nutrients from it. This mode of nutrition in which organisms take in nutrients in solution form from dead and decaying matter is called saprotrophic nutrition.

4. If the pitcher plant is green and carries out photosynthesis, then why does it feed on insects?

Answer: These plants grow in soil that is deficient in nitrogen. All living things must have nitrogen. These plants (e.g. pitcher plant) are green and carry out photosynthesis to obtain a part of the food required by them. So, they feed on insects to obtain the nitrogen needed for their growth.

5. How farmer is benefited from symbiotic relationship between rhizobium bacteria and legumes?

Answer:  This association is of great significance for the farmers. The bacterium called Rhizobium present in leguminous plant can take atmospheric nitrogen and convert it into a soluble form. So, they do not need to add nitrogen fertiliser to the soil in which leguminous plants are grown.

6. How do plants transport raw materials to the food factories of the plants?

Answer:  Water and minerals are transported to the leaves by the vessels which run like pipes throughout the root, the stem, the branches and the leaves. They form a continuous path or passage for the nutrients to reach the leaf. The leaves have a green pigment called chlorophyll. It helps leaves to capture the energy of the sunlight.

7. From where do the plants obtain nitrogen?

Answer: Nitrogen is present in abundance in gaseous form in the air.

However, plants cannot absorb nitrogen in this form. Soil has certain bacteria that convert gaseous nitrogen into a usable form and release it into the soil. These soluble forms are absorbed by the plants along with water. Farmers add fertilisers rich in nitrogen to the soil.

8. Can we say that the insectivorous plants are partial heterotrophs?

Answer: These plants grow in soil that is deficient in nitrogen. All living things must have nitrogen. These plants are green and carry out photosynthesis to obtain a part of the food required by them. They feed on insects to obtain the nitrogen needed for their growth. So, we can say that the insectivorous plants are partial heterotrophs.

9. Explain symbiotic relationship in rhizobium and leguminous plants.

Answer:  The bacterium called Rhizobium can take atmospheric nitrogen and convert it into a soluble form. But Rhizobium cannot make its own food. So it lives in the roots of gram, peas, moong, beans and other legumes and provides them with nitrogen. In return, the plants provide food and shelter to the bacteria. They, thus, have a symbiotic relationship.

10. Give a brief description of the process of synthesis of food in green plants?

Answer: The synthesis of food in plants occurs in leaves. Therefore, all the raw materials must reach there. Water and minerals present in the soil are absorbed by the roots and transported to the leaves. Carbon dioxide from air is taken in through stomata present on the surface of the leaves. Chlorophyll helps leaves to capture the energy of the sunlight. This energy is used to synthesis (prepare) food from carbon dioxide and water.

11. Explain symbiotic relationship with the help of example.

Answer:  Some organisms live together and share shelter and nutrients. This is called symbiotic relationship. For example, in organisms called lichens, a chlorophyll-containing partner, which is an alga, and a fungus live together. The fungus provides shelter, water and minerals to the alga and, in return, the alga provides food which it prepares by photosynthesis.

12. Define cells, cell membrane, nucleus and cytoplasm.

Answer:  Cells – the bodies of living organisms are made of tiny units called cells.

Cell membrane – The cell is enclosed by a thin outer boundary, called the cell membrane.

Nucleus – Most cells have a distinct, centrally located spherical structure called the nucleus.

Cytoplasm – The nucleus is surrounded by a jelly-like substance called cytoplasm.

13. Distinguish between a parasite and a saprotroph.

14. Can we imagine life on earth in the absence of photosynthesis?

Answer: No, we cannot imagine life on earth in the absence of photosynthesis. In the absence of photosynthesis there would not be any food. The survival of almost all living organisms directly or indirectly depends upon the food made by the plants. Besides, oxygen which is essential for the survival of all living organisms is produced during photosynthesis. In the absence of photosynthesis, life would be impossible on the earth.

15. Write a note on pitcher plant?

Answer: The pitcher-like structure is the modified part of the leaf. The apex of the leaf forms a lid which can open and close the mouth of the pitcher. Inside the pitcher there are hair which are directed downwards. When an insect lands in the pitcher, the lid closes and the trapped insect gets entangled into the hair. The insect is digested by the digestive juices secreted in the pitcher.

16. How nutrients are replenished in the soil?

Answer:  Plants absorb mineral nutrients from the soil. So, their amounts in the soil keep on declining. Fertilisers and manures contain plant nutrients such as nitrogen, potassium, phosphorous, etc. These nutrients need to be added from time to time to enrich the soil. The bacterium called Rhizobium present in the roots of legumes plants can take atmospheric nitrogen and convert it into a soluble form. This way Rhizobium bacterium also helps to replenish nitrogen in the soil.

17. Draw a diagram showing photosynthesis. Answer:

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Nutrition in Plants Class 7 MCQ Test (Online Available)

Free mcq test, table of content, nutrition in plants test - 15.

Duration: 10 Mins

Maximum Marks: 10

Read the following instructions carefully.

1. The test contains 10 total questions.

2. Each question has 4 options out of which only one is correct .

3. You have to finish the test in 10 minutes.

4. You will be awarded 1 mark for each correct answer.

5. You can view your Score & Rank after submitting the test.

6. Check detailed Solution with explanation after submitting the test.

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Nutrition in Plants Test - 14

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Objective questions have become the norm now, those students who are studying in class 7 must be well versed with all kinds of MCQ Questions; therefore, the link to access Nutrition in Plants MCQ Class 7 is mentioned here on this page.

Nutrition in Plants Class 7 MCQ questions are curated by subject experts referring to the prescribed NCERT Class 7 Science Book. Those students who have studied the lesson Nutrition in Plants must practise the CBSE Class 7 MCQ Questions as it helps in deepening the understanding of the topics.

Class 7 Nutrition in Plants MCQ with Answers Online

For the ease of students, the subject experts have simplified the practice process of the class 7 Nutrition in Plants MCQ as they have solved each and every question given. The answers are detailed and easy to grasp. Students who want to practise the questions of Class 7 Nutrition in Plants MCQ with Answers online can use the Selfstudys website.

The MCQ Questions of Nutrition in Plants with answers are also given so that students can understand the methods of solving the concepts based questions. As well as, the solutions are helpful to understand where the students are making mistakes and need to improve.

How to Practise MCQ from NCERT Chapter Nutrition in Plants?

There are several ways to practise the MCQ from NCERT Chapter Nutrition in Plants; one is by solving questions from the chapter’s end and another is by using online medium. In this section, we have mentioned the steps to Practise MCQ from NCERT Chapter Nutrition in Plants online.

• First of all open Selfstudys.com on your Smartphone, PC/Laptop

• Navigate to the CBSE by Tapping/clicking on the navigation bar or button 
• It will open a new lists where you can find MCQ Test - Click on that  

• Then, a new page will load containing the lists of classes; just Tap or click on Class 7. *In Smartphone, you may require to scroll the given classes name towards left.

• Now, after selecting the Class 7, the same page will reload, make sure you select the Science to access the MCQ Questions of Class 7 Nutrition in Plants.

Note: The online MCQ Questions of Nutrition in Plants can’t be downloaded, those who want to access the PDF of Nutrition in Plants MCQ can refer to the CBSE Class 7 MCQ PDF  section within the CBSE menu.

What is Nutrition in Plants MCQ and How to Use it?

Since class 7 students are in their early stage of academics they may have questions regarding What is Nutrition in Plants MCQ and How to Use it. So, the answer is MCQ Questions are objective questions which contain questions followed by 4 options where only one is considered the correct answer and remaining as a distraction. Why is it so, because MCQ questions are ideal to assess a student’s conceptual knowledge.

Those who want to use the Nutrition in Plants MCQ can use this website to access the online MCQ questions to practise.

Top 5 Benefits of Nutrition in Plants MCQ Class 7

Nutrition in Plants MCQ Class 7 questions benefit students in several ways; however, here we have mentioned a total of 5 benefits that a student will get if they are using the MCQ from NCERT Chapter Nutrition in Plants.

• Helps in Practising Questions: Sometimes, it's hard to get the questions to practise; therefore, the Selfstudys team has curated various sets of MCQ Questions of Class 7 Nutrition in Plants. Having access to the objective questions of Class 7 Nutrition in Plants helps students practising various questions for free of cost.
• Boosts the Critical Thinking Capability: The MCQs or objective questions must be answered in lesser time; therefore, those who will regularly solve Nutrition in Plants MCQ Class 7 will benefit by having a great boost in the critical thinking capability as the questions are in the objective format which can be answered if one has a good command over the concepts of Nutrition in Plants.
• Assists in Covering the Class 7 Science Syllabus: Nutrition in Plants is a chapter of Class 7 Science and those who are going to solve the MCQs of Class 7 Nutrition in Plants will be able to practise all the questions as per their Science Syllabus.
• Helps in Exam Preparation: If a student solves the objective questions from class 7 Nutrition in Plants, they will be able to be prepared for the annual examination too. It is because the questions that are asked in the online MCQ of Nutrition in Plants are asked in the final exam question papers too.
• A Deeper Understanding of Nutrition in Plants: All the important points that are discussed in Nutrition in Plants must be memorised by students as it helps in deepening the understanding of the Delhi Sultans. One of the great benefits of solving Nutrition in Plants MCQ Class 7 is that one can be thorough with the topics and can develop a deeper understanding of Nutrition in Plants chapter of class 7.

Apply These Techniques To Better Answer the MCQ Questions of Nutrition in Plants

Although, there is no wrong or right method to answer the MCQ Questions, those who are interested in knowing the techniques to better answer the MCQ Questions of Nutrition in Plants can follow the below given methods.

Read the Question Carefully:  Questions in Nutrition in Plants MCQ Class 7 can be asked from tricky to hard to understand. In this case, you must read the questions of Nutrition in Plants MCQ carefully. By paying attention to the questions, it will help you connect the dots and assist you recall the studied concepts to answer the MCQs easily.

Eliminate Obviously Wrong Answers:  Many questions of Nutrition in Plants MCQ Class 7 will be so familiar that you can be certain for the wrong answer but uncertain for the right answer, in that situation obviously eliminate wrong answers first. By eliminating irrelevant or incorrect answers, it will help you find the one correct answer from all the given four options.

Look for Clues in the Question:  As we have discussed the first technique is to read the questions carefully, it is vital for looking for the clues in the questions of Nutrition in Plants MCQ Class 7. Every single question contains some kind of clues that help you answer them easily, but due to running out of time many don’t pay attention to it. In order to solve Nutrition in Plants MCQ Class 7 by using this technique you may have to do a thorough practice of Class 7 MCQ Questions.

Use the Process of Elimination:  There is not much difference in the elimination method and eliminating the wrong answer (discussed in point number 2) first, but one difference that makes the elimination process different is you can eliminate the right or wrong answer first. 

This means that when you are confused between two options, you can separate them and then you try to focus on only those 2 options to find out the correct answer of Nutrition in Plants MCQ Class 7. This elimination process works best in most of the scenarios.

Don't Spend too Much Time on One Question:  It is never a good idea to be rigid on one question and spend most of your time answering them. When you are practising Nutrition in Plants MCQ Class 7 questions, you have limited time and you have to make sure that you use your time smartly to attempt all the questions as asked in the Nutrition in Plants Class 7 MCQ.

Double-check your Answer:  Before submitting the Online test of Class 7 Nutrition in Plants MCQ, you should double check your answer if the test time hasn't completed. When you do a double check of your answers, you may find some silly mistakes that you have made due to which you could have lost some marks. Therefore, be conscious and double check your answers before submitting Nutrition in Plants MCQ Class 7.

*As per the Selfstudys Online MCQ Test instructions the time plays a crucial role in calculating your test rank so, be conscious when you use any single minute during your test.

Manage your Time:  Having great time management skills doesn’t only help you quickly answer the questions, but gives you the ability to save time to review the questions or in doing a last minute cross-checking. Thus, when you start solving Nutrition in Plants MCQ Class 7 questions, try to manage time and some of your test time to review the answers you have ticked throughout the test. 

Apart from this, time management skills give you peace of mind and keep you calm.

Stay Calm to Recall Previously Studied Topics:  When you struggle to come up with the correct answer of Nutrition in Plants MCQ Class 7 Questions try to stay calm as it will help you recall previously studied topics. Research says, being calm and relaxed helps in saving energy. Thus, staying calm while solving the MCQ from NCERT Chapter Nutrition in Plants helps you be more focused and answer the questions efficiently. The saved energy can be channelized to increase the focus and concentration to better recall the topics and subtopics of Nutrition in Plants.

There is a high possibility of having more techniques of Nutrition in Plants MCQ Class 7 as mentioned, but these given methods work well in most of the cases.

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• Chapter 1: Nutrition In Plants

Nutrition in Plants Class 7 Science Notes - Chapter 1

Introduction to nutrition in plants, living and non-living organisms.

• Living organisms like human beings, plants and animals need food to survive and exist.
• Living organisms reproduce, respond to the environment and also adapt.
• Living organisms respire and excrete as well.

Cells are tiny units that help make up a living organism. Hence, they are also called building blocks of an organism.

• A cell is constituted of three major parts :
• A thin outer layer is called the cell membrane .
• A spherical structure located at the centre of the cell is called a nucleus .
• A jelly-like substance that surrounds a nucleus called the cytoplasm .

To know more about Cell, visit here .

Single and Multi-Cellular Organisms

• Organisms that are made up of just one cell are called single-celled or Unicellular organisms. E.g.  Amoeba
• Organisms with more than one cell in their body are called multicellular organisms.
• All human beings, plants and animals are multicellular organisms.

To know the difference between Unicellular and Muti-Cellular Organisms, visit here .

Nutrition is the mode of taking food by an organism and its utilisation by the body.

• Nutrition is very important as the nutrients from the food consumed enable living organisms to build their bodies and grow.
• Nutrition helps to repair damaged parts and organs.
• Nutrition also provides energy for carrying out various functions.

For more information on How Plants Get Their Nutrition, watch the below video

To know more about Nutrition, visit here .

Autotrophs and Heterotrophs

Organisms that make food themselves are called autotrophs .

• Plants are an example of autotrophs as they make their own food using carbon dioxide, water and light energy.

Organisms that rely on others and usually take in ready-made food made by the autotrophs are called   heterotrophs.

• Animals and human beings are an example of heterotrophs as they depend on plants in many ways for their food.

To know the difference between autotrophs and heterotrophs, visit here .

Photosynthesis

Photosynthesis  is the process of synthesis of food by green plants.

• This process usually takes place in the leaves of plants.
• The process requires chlorophyll (green-coloured pigment),  sunlight,   carbon dioxide and water. 

For more information on Photosynthesis, watch the below videos:

To know more about Photosynthesis, visit here .

• Organelles are tiny cellular structures inside a cell and perform specific functions that are important for the cell.
• They are found in the cytoplasm of a cell.
• E.g. Chloroplast is the cell organelle that carries out photosynthesis.

Chloroplasts

• The chloroplast is   a type of organelle that exists in plants.
• These organelles contain chlorophyll , the green-coloured pigment that is responsible for carrying out the process of photosynthesis in plants.

Chlorophyll

• Chlorophyll is the pigment that is responsible for the synthesis of food in green plants.
• This pigment green colour to its bearers and is abundantly found in leaves.
• Chlorophyll is locked inside the chloroplast.

Process of Photosynthesis

The process of photosynthesis takes place in the leaves, the “food factory” of the plants.

• Carbon dioxide is taken in through tiny pores on the leaves called stomata.
• Water and minerals that are required for the process are transported to the leaves from the roots through the stem.
• Chlorophyll helps the leaves use the energy from the sunlight to prepare food using carbon dioxide, water and minerals.
• Oxygen is released as a by-product of this process.
• The equation can be given as follows:

To know more about Photosynthesis Process, visit here .

Nutrients Being Replenished in Soil

• Plants absorb mineral nutrients from the soil in order to make their own food and for other important processes.
• Soils need to be enriched with nutrients such as nitrogen, phosphorus, potassium etc regularly.
• Only then can we grow plants and keep them healthy.
• There are 17 most important nutrients for plants.
• 6 are called macronutrients, and the rest are called micronutrients.
• Macronutrients are required in large quantities, while micronutrients are required in very small quantities.

To know more about Soil Fertility: Replenishment of Nutrients, visit here .

Other Modes of Nutrition

Symbiotic relationship.

Organisms that live together and share their shelter and nutrients are said to be in a symbiotic relationship.

• Certain fungi live in the roots of trees.
• The tree provides nutrients to the fungus and, in return, receives help from it to take up water and nutrients from the soil.
• This association works well for both the fungi and the tree.
• Another common example is Rhizobium bacteria .
• They reside in the root nodules of leguminous plants.
• The bacteria provide a plant with nitrogen that they fix, and in turn, they get shelter and food from the plant.
• Rhizobium is a type of bacteria that converts atmospheric nitrogen into a soluble form that can be utilised by plants (nitrogen fixation) .
• It usually resides in the roots of leguminous plants like peas, gram, moong etc., and is instrumental in providing these plants with a rich source of nitrogen.

To know more about Rhizobium, visit here .

Nitrogen Fixation

• Nitrogen is an important nutrient required for soil and for plants.
• However, nitrogen in the atmosphere is not easily accessible.

The process by which nitrogen is converted into a form that can be used by plants and other living organisms is called nitrogen fixation .

To know more about Nitrogen Fixation, visit here .

A  parasite is a heterotroph that completely depends on another organism for its food.

• The organism to which the parasite latches onto is called the host .
• The host, in the process, is deprived of all nutrients for its own growth as they are consumed by the parasite.
• For example, Cuscuta (Amarbel) is a nongreen plant that takes readymade food from the plant on which it is growing.

To know more about Parasites, visit here .

Saprotrophs

Organisms which rely on dead and decaying matter for their food are called Saprotrophs .

• This mode of nutrition is called saprotrophic nutrition .
• For example, Fungi.
• Fungi secrete digestive juices on the dead and decaying matter and convert it into a solution.
• Then they absorb the nutrients from it.

To know the difference between Parasites and Saprotrophs, visit here .

Insectivorous Plants

Plants that feed on insects are called Insectivorous plants.

• These plants are green and carry out photosynthesis.
• But, they grow in nitrogen-deficient soils.
• So, in order to get nitrogen, they feed on insects.
• These insectivorous plants have their parts modified for attracting and catching insects.
• For example, The pitcher plant, Venous flytrap

To know more about Insectivorous plants, visit here .

Did You Know?

Cactus plants.

• Most of the photosynthesis takes place in the leaves of green plants.
• However, in the case of some desert plants, it takes place in their stem and even branches.
• Cacti are found in the desert, and their leaves are modified to spines to avoid loss of water due to transpiration.
• Therefore, their green stems enable them to carry out the process of photosynthesis.

Frequently Asked Questions on CBSE Class 7 Science Notes Chapter 1 Nutrition in Plants

What are micronutrients.

Micronutrients are vitamins and minerals required by the plant in very small amounts.

What is nutrient density?

The nutrient density of a food is the ratio of beneficial ingredients to the food’s energy content for the amount that is commonly consumed.

What are macronutrients?

Macronutrients are vitamins and minerals required by the plant in large amounts.

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Case Study Questions Class 7 Social and Political On Equality

Case study questions class 7 social and political life chapter 1 on equality.

CBSE Class 7 Case Study Questions Social and Political On Equality. Important Case Study Questions for Class 7 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions On Equality.

Case Study 1

The Indian Constitution recognises every person as equal. This means that every individual in the country, including male and female persons from all castes, religions, tribes, educational and economic backgrounds are recognised as equal. This is not to say that inequality ceases to exist. It doesn’t. But atleast, in democratic India, the principle of the equality of all persons is recognised. While earlier no law existed to protect people from discrimination and ill-treatment, now there are several that work to see that people are treated with dignity and as equals. This recognition of equality includes some of the following provisions in the Constitution: first that every person is equal before the law. What this means is that every person, from the President of the country to Kanta, a domestic worker, has to obey the same laws. Second, no person can be discriminated against on the basis of their religion, race, caste, place of birth or whether they are female or male. Third, every person has access to all public places including playgrounds, hotels, shops and markets. All persons can use publicly available wells, roads and bathing ghats. Fourth, untouchability has been abolished

1.) What is meant by the term equality in the Indian Constitution?

Ans. The term equality in the Indian Constitution means that every individual in the country, including male and female persons from all castes, religions, tribes, educational and economic backgrounds are recognised as equal.

2.) “every person is equal before law” Explain.

Ans. This recognition of equality includes some of the following provisions in the Constitution: first that every person is equal before the law. What this means is that every person, from the President of the country to Kanta, a domestic worker, has to obey the same laws. Second, no person can be discriminated against on the basis of their religion, race, caste, place of birth or whether they are female or male. Third, every person has access to all public places including playgrounds, hotels, shops and markets. All persons can use publicly available wells, roads and bathing ghats. Fourth, untouchability has been abolished.

3.) How has the government tried to implement the concept of equality?

Ans. The two ways in which the government has tried to implement the equality that is guaranteed in the Constitution is first through laws and second through government programmes or schemes to help disadvantaged communities.

4.) Why does the government invest in schemes and programmes for the underprivileged?

Ans. These schemes are to ensure greater opportunity for people who have not had this in the past.

Case Study 2

One of the steps taken by the government includes the midday meal scheme. This refers to the programme introduced in all government elementary schools to provide children with cooked lunch. Tamil Nadu was the first state in India to introduce this scheme, and in 2001, the Supreme Court asked all state governments to begin this programme in their schools within six months. This programme has had many positive effects. These include the fact that more poor children have begun enrolling and regularly attending school. Teachers reported that earlierchildren would often go home for lunch and then not return to school but now with the midday meal being provided in school, their attendance has improved. Their mothers, who earlier had to interrupt their work to feed their children at home during the day, now no longer need to do so. This programme has also helped reduce caste prejudices because children of all castes in the school eat this meal together, and in quite a few places, Dalit women have been employed to cook the meal. The midday meal programme also helps reduce the hunger of poor students who often come to school and cannot concentrate because their stomachs are empty.

1.) What is the midday meal programme?

Ans. One of the steps taken by the government includes the midday meal scheme. This refers to the programme introduced in all government elementary schools to provide children with cooked lunch.

2.) Which state was the first state to introduce midday meals for children?

Ans. Tamil Nadu

3.) What are the benefits of the midday meal scheme introduced by the government?

Ans. This programme has had many positive effects. These include the fact that more poor children have begun enrolling and regularly attending school. Teachers reported that earlier children would often go home for lunch and then not return to school but now with the midday meal being provided in school, their attendance has improved. Their mothers, who earlier had to interrupt their work to feed their children at home during the day, now no longer need to do so.

4.) How has the midday meal programme helped reduce caste prejudices?

Ans. This programme has also helped reduce caste prejudices because children of all castes in the school eat this meal together, and in quite a few places, Dalit women have been employed to cook the meal.

5.) Even after efforts by the government, the condition of inequality and discrimination still persists. Why ?

Ans. One of the main reasons for this is that attitudes change very slowly. Even though persons are aware that discrimination is against the law, they continue to treat people unequally on the basis of their caste, religion, disability, economic status and because they are women.

Case study 3

In the United States of America, the African–Americans whose ancestors were the slaves who were brought over from Africa, continue to describe their lives today as largely unequal. This, despite the fact that there was a movement in the late 1950s to push for equal rights for African– Americans. Prior to this, African–Americans were treated extremely unequally in the United States and denied equality through law. For example, when travelling by bus, they either had to sit at the back of the bus or get up from their seat whenever a white person wished to sit. Rosa Parks (1913–2005) was an African–American woman. Tired from a long day at work she refused to give up her seat on a bus to a white man on 1 December 1955. Her refusal that day started a huge agitation against the unequal ways in which African–Americans were treated and which came to be known as the Civil Rights Movement. The Civil Rights Act of 1964 prohibited discrimination on the basis of race, religion or national origin. It also stated that all schools would be open to African–American children and that they would no longer have to attendseparate schools specially set up for them. However, despite this, a majority of African–Americans continue to be among the poorest in the country. Most African-American children can only afford to attend government schools that have fewer facilities and poorly qualified teachers as compared to white students who either go to private schools or live in areas where the government schools are as highly rated as private schools

1.) What was the condition of the African-Americans before the movement in the late 1950s?

Ans. In the United States of America, the African–Americans whose ancestors were the slaves who were brought over from Africa, continue to describe their lives today as largely unequal. Prior to the movement, African–Americans were treated extremely unequally in the United States and denied equality through law.

2.) What was the movement that happened in America in the late 1950s was about?

Ans. There was a movement in America in the late 1950s to push for equal rights for African americans.

3.) Who was Rosa Parks?

Ans. Rosa Parks (1913–2005) was an African–American woman. Tired from a long day at work she refused to give up her seat on a bus to a white man on 1 December 1955.

4.) What was the consequence of Rosa Park’s refusal to give up her bus seat?

Ans. Her refusal that day started a huge agitation against the unequal ways in which African–Americans were treated and which came to be known as the Civil Rights Movement

5.) What was the Civil Rights Act of 1964?

Ans. The Civil Rights Act of 1964 prohibited discrimination on the basis of race, religion or national origin. It also stated that all schools would be open to African–American children and that they would no longer have to attend separate schools specially set up for them.

Also See: Case Based Questions from Class 7 Geography Chapter 7

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