Class 7 Science Chapter 1 Nutrition in Plants

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Practice Class 7 Science Chapter 1 Nutrition in Plants MCQ Questions with Answers based on the latest NCERT syllabus. Solve important concept-based MCQs on photosynthesis, stomata, chlorophyll, plant nutrition, and symbiosis with detailed solutions for CBSE, State Board, Olympiad, and scholarship exam preparation.

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Chapter Information

Subject: Science

Class: 7

Chapter: Nutrition in Plants

Question Type: Multiple Choice Questions (MCQs)

Difficulty Level: Moderate

Based On: NCERT Latest Syllabus (2026)

Introduction

Plants are the only organisms that prepare their own food using sunlight, water, and carbon dioxide. This remarkable process supports almost all life on Earth. In this practice set, students will solve concept-based MCQs that strengthen understanding of photosynthesis, nutrition, and plant adaptations according to the latest NCERT syllabus.

What You Will Learn

✔ Importance of leaves in photosynthesis

✔ Adaptations of different plants

✔ Symbiotic relationships

✔ Essential nutrients

✔ Plant food storage

✔ Photosynthesis concepts

✔ NCERT exam-oriented practice

Why This Topic Is Important

Plant nutrition is one of the most fundamental topics in Biology. It helps students understand ecosystems, food chains, and the importance of green plants. Questions from this chapter are commonly asked in school exams, Olympiads, NTSE, and scholarship examinations.

1. MCQ Questions with Detailed Solutions

Q1. Which plant part is known as the “food factory” because it prepares food?

A) Root

B) Stem

C) Leaf

D) Flower

Answer

C) Leaf

Concept Behind This Question

Leaves contain chlorophyll and carry out photosynthesis.

Step-by-Step Solution

Leaves contain chloroplasts with chlorophyll.

They absorb sunlight and prepare food for the plant.

Hence, leaves are called the food factories of plants.

Therefore, the correct answer is C.

Exam Tip

Leaf = Food Factory of the Plant

Q2. Which of the following organisms together form a lichen?

A) Alga and Fungus

B) Bacteria and Alga

C) Fungus and Moss

D) Alga and Cuscuta

Answer

A) Alga and Fungus

Concept Behind This Question

Lichens are a classic example of symbiosis.

Step-by-Step Solution

An alga prepares food by photosynthesis.

A fungus provides water, minerals, and protection.

Both organisms benefit from living together.

Hence, the correct answer is A.

Exam Tip

Lichen = Alga + Fungus

Q3. Which nutrient helps plants produce healthy green leaves?

A) Nitrogen

B) Sodium

C) Helium

D) Gold

Answer

A) Nitrogen

Concept Behind This Question

Nitrogen is essential for chlorophyll formation and plant growth.

Step-by-Step Solution

Nitrogen is required for making proteins and chlorophyll.

Plants lacking nitrogen often develop pale or yellow leaves.

Therefore, the correct answer is A.

Exam Tip

Nitrogen deficiency → Yellow leaves and poor growth

Q4. Which process takes place mainly during the daytime because it requires sunlight?

A) Photosynthesis

B) Germination

C) Seed Dispersal

D) Pollination

Answer

A) Photosynthesis

Concept Behind This Question

Sunlight is essential for photosynthesis.

Step-by-Step Solution

Photosynthesis uses sunlight to prepare food.

Without sunlight, this process cannot occur efficiently.

Therefore, it mainly takes place during the daytime.

Hence, the correct answer is A.

Exam Tip

Photosynthesis = Daytime Process

Q5. Which of the following statements is correct?

A) All plants are parasites.

B) All plants are saprotrophs.

C) Most green plants prepare their own food.

D) Green plants depend entirely on animals for food.

Answer

C) Most green plants prepare their own food.

Concept Behind This Question

Green plants are autotrophs because they can prepare their own food.

Step-by-Step Solution

Green plants contain chlorophyll.

They use sunlight, water, and carbon dioxide to prepare food.

Only a few plants, such as Cuscuta, depend on other organisms.

Therefore, the correct answer is C.

Exam Tip

Most green plants are autotrophs.

Important Formulas & Concepts

1. Food Factory of Plants

Leaves are called the food factories because they perform photosynthesis.

2. Lichen

Lichen = Alga + Fungus

Example of symbiosis.

3. Nitrogen

Helps in chlorophyll formation, protein synthesis, and healthy plant growth.

4. Photosynthesis

Occurs mainly during the daytime because sunlight is required.

5. Autotrophs

Green plants prepare their own food through photosynthesis.

Related Practice Questions

1. Why are leaves called food factories?
2. Explain the symbiotic relationship in lichens.
3. Why is nitrogen important for plants?
4. Why does photosynthesis mainly occur during the daytime?
5. What are autotrophs?

Mini Quiz Challenge

Fill in the blanks

1. Leaves are called the __________ of plants.
2. Lichens consist of an alga and a __________.
3. Photosynthesis mainly occurs during the __________.

Answers

1. Food factories
2. Fungus
3. Daytime

Exam Tips

✔ Revise important NCERT definitions.

✔ Remember examples of symbiosis.

✔ Learn the functions of nitrogen.

✔ Practice concept-based MCQs.

✔ Read NCERT activities carefully.

Quick Revision Notes

✔ Leaves prepare food.

✔ Lichens show symbiosis.

✔ Nitrogen supports healthy growth.

✔ Photosynthesis mainly occurs during the day.

✔ Most green plants are autotrophs.

✔ Chlorophyll captures sunlight.

✔ Food prepared is stored as starch.

Common Mistakes Students Make

❌ Thinking all plants depend on other organisms.

❌ Confusing lichens with parasitic plants.

❌ Forgetting the importance of nitrogen.

❌ Assuming photosynthesis occurs equally at night.

❌ Mixing chlorophyll with chloroplast.

Key Takeaways

✔ Leaves are the food factories of plants.

✔ Lichens are formed by algae and fungi.

✔ Nitrogen is essential for healthy plant growth.

✔ Photosynthesis mainly takes place during daylight.

✔ Most green plants are autotrophs.

✔ Chlorophyll is necessary for photosynthesis.

FAQs

1. Why are leaves called food factories?

Because they prepare food through photosynthesis.

2. What is a lichen?

A lichen is a symbiotic association between an alga and a fungus.

3. Why do plants need nitrogen?

Plants need nitrogen for protein synthesis and healthy growth.

4. Can photosynthesis occur without sunlight?

No. Sunlight is essential for photosynthesis.

5. What type of nutrition do green plants have?

Green plants have autotrophic nutrition.

Conclusion

The chapter Nutrition in Plants helps students understand how green plants produce food and support all living organisms. Concepts such as photosynthesis, symbiosis, and the importance of nutrients form the foundation of Biology. Practising these NCERT-based MCQs regularly improves conceptual clarity and exam performance.

Related links

• Class 7 Maths Chapter 3 Data Handling part-7
• Class 7 English Chapter 1 The Rainbow part-3
• Class 7 Social Science Chapter 1 Tracing Changes Through a Thousand Years part-6
• Class 7 Science Chapter 1 Nutrition in Plants part-5
• Class 7 Maths Chapter 3 Data Handling part-6
• Class 7 Social Science Chapter 1 Tracing Changes Through a Thousand Years part-5
• Class 7 Maths Chapter 3 Data Handling part-5
• Class 7 Science Chapter 1 Nutrition in Plants part-4
• Class 7 English Chapter 1 The Rainbow part-2
• Class 7 Science Chapter 1 Nutrition in Plants part-3
• Class 7 Social Science Chapter 1 Tracing Changes Through a Thousand Years part-4
• Class 7 Maths Chapter 3 Data Handling part-4
• Class 7 Social Science Chapter 1 Tracing Changes Through a Thousand Years part-3

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