Understanding the key concepts of Class 7 Science Chapter 10 – Life Processes in Plants is crucial for exam success. To make your revision easier, we have created chapterwise mcq questions with Answers for class 7 Science based on the latest syllabus and exam pattern. It is a part of MCQ Questions for CBSE Class 7 Science Series.
These multiple-choice questions will help you assess your knowledge, improve accuracy, and boost confidence for your exams. Whether you are preparing for school tests, online tests or competitive exams, these Life Processes in Plants MCQs will strengthen your conceptual clarity.
| Chapter | Life Processes in Plants |
| Book | Curiosity |
| Type of Questions | MCQ Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 7 |
| Subject | Science |
| Useful for | Class 7 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 7 Science Chapterwise MCQ Questions |
MCQ Questions on Life Processes in Plants Class 7 Science – Curiosity
MCQs
Q1. What is the primary site for photosynthesis in plants?
(a) Stem
(b) Roots
(c) Leaves
(d) Flowers
Show Answer
Answer: (c)
Explanation: Leaves contain chlorophyll and are the main site of photosynthesis in plants.
Q2. Which gas is absorbed by plants during photosynthesis?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Hydrogen
Show Answer
Answer: (b)
Explanation: Carbon dioxide from the air is absorbed by leaves for photosynthesis.
Q3. Which pigment helps leaves capture sunlight?
(a) Carotene
(b) Xanthophyll
(c) Chlorophyll
(d) Hemoglobin
Show Answer
Answer: (c)
Explanation: Chlorophyll is the green pigment that helps in trapping sunlight.
Q4. Which substance is produced in leaves and stored as starch?
(a) Oxygen
(b) Glucose
(c) Protein
(d) Fiber
Show Answer
Answer: (b)
Explanation: Glucose is produced during photosynthesis and later converted to starch.
Q5. Which experiment proves that sunlight is essential for photosynthesis?
(a) Water test
(b) Iodine test with green and non-green patches
(c) Windmill test
(d) Soil test
Show Answer
Answer: (b)
Explanation: The iodine test showing blue-black patches in sunlight confirms the need for sunlight.
Q6. What happens to the leaf kept inside a bottle with caustic soda in sunlight?
(a) Turns blue-black
(b) Remains colorless
(c) Turns red
(d) Becomes brown
Show Answer
Answer: (b)
Explanation: Caustic soda absorbs carbon dioxide, preventing starch formation, so no color change.
Q7. Which gas is released during photosynthesis?
(a) Carbon dioxide
(b) Nitrogen
(c) Oxygen
(d) Hydrogen
Show Answer
Answer: (c)
Explanation: Oxygen is a by-product of photosynthesis and is released into the air.
Q8. Which structure in leaves helps in gas exchange?
(a) Phloem
(b) Xylem
(c) Stomata
(d) Chloroplast
Show Answer
Answer: (c)
Explanation: Stomata are tiny pores on the leaf surface that regulate gas exchange.
Q9. Transport of water in plants is done by:
(a) Phloem
(b) Xylem
(c) Stomata
(d) Root hairs
Show Answer
Answer: (b)
Explanation: Xylem vessels carry water and minerals from the roots to other parts of the plant.
Q10. Which part of the plant transports food made by leaves?
(a) Root hairs
(b) Xylem
(c) Phloem
(d) Stomata
Show Answer
Answer: (c)
Explanation: Phloem carries the prepared food from leaves to other parts of the plant.
Q11. What is the correct word equation for photosynthesis?
(a) Glucose + Oxygen → Carbon dioxide + Water
(b) Water + Oxygen → Carbon dioxide
(c) Carbon dioxide + Water → Glucose + Oxygen
(d) Starch + Water → Oxygen + Glucose
Show Answer
Answer: (c)
Explanation: This is the standard word equation representing photosynthesis.
Q12. What are the tiny structures in stems that transport water upward?
(a) Phloem
(b) Stomata
(c) Guard cells
(d) Xylem
Show Answer
Answer: (d)
Explanation: Xylem vessels transport water and minerals from roots to leaves.
Q13. What do stomata release during photosynthesis?
(a) Nitrogen
(b) Oxygen
(c) Glucose
(d) Minerals
Show Answer
Answer: (b)
Explanation: Oxygen, produced during photosynthesis, exits through stomata.
Q14. Which part of the plant stores excess food as starch?
(a) Leaf
(b) Stem
(c) Roots, seeds, and tubers
(d) Bark
Show Answer
Answer: (c)
Explanation: Plants store starch in storage organs like roots and tubers.
Q15. Which experiment proves plants release oxygen during photosynthesis?
(a) Iodine test
(b) Lime water test
(c) Aquatic plant in sunlight with test tube
(d) Seed germination in dark
Show Answer
Answer: (c)
Explanation: The setup shows gas bubbles (oxygen) collecting in the inverted test tube in sunlight.
Q16. Why are plants called autotrophs?
(a) They store food
(b) They breathe through stomata
(c) They prepare their own food
(d) They absorb water
Show Answer
Answer: (c)
Explanation: Autotrophs are organisms that make their own food using sunlight and carbon dioxide.
Q17. What is the role of chlorophyll in photosynthesis?
(a) Absorbs water
(b) Carries glucose
(c) Captures sunlight
(d) Absorbs minerals
Show Answer
Answer: (c)
Explanation: Chlorophyll captures light energy, which is vital for the photosynthesis process.
Q18. What happens to glucose produced in photosynthesis?
(a) Released as gas
(b) Burned in sunlight
(c) Used and stored as starch
(d) Converted to protein
Show Answer
Answer: (c)
Explanation: Glucose is used immediately or stored as starch for later use.
Q19. What helps water move from roots to leaves?
(a) Diffusion
(b) Phloem
(c) Xylem
(d) Stomata
Show Answer
Answer: (c)
Explanation: Water is transported upward through the plant via xylem vessels.
Q20. What do stomata regulate in plants?
(a) Food transport
(b) Water absorption
(c) Gas exchange
(d) Growth hormones
Show Answer
Answer: (c)
Explanation: Stomata control the exchange of gases like carbon dioxide and oxygen.
We hope the given mcq questions with Answers for Life Processes in Plants Class 7 helps you in your learning.
Also check
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Topics from which mcq questions may be asked
- Photosynthesis
- Reproduction
- Transport in plants
Plants are the green engines of our planet.
Frequently Asked Questions (FAQs) on Life Processes in Plants MCQ Questions
Q1: Why should I practice Class 7 Science Chapter 10 MCQs?
A1: Practicing MCQs helps in quick revision, improves problem-solving speed, and enhances conceptual understanding of important topics in Class 7 Science.
Q2: Are these Class 7 Science MCQs based on the latest syllabus?
A2: Yes, all the MCQs are designed as per the latest CBSE syllabus and exam pattern to help students prepare effectively.
Q3: Where can I find more MCQs for Class 7 Science?
A3: You can find more chapter-wise MCQs on our website. These are designed to cover important concepts and prepare you for exams.
Q4: Are the answers provided for all MCQs?
A4: Yes, each MCQ is accompanied by the correct answer and explanations to help students understand and learn better.
Q5: How can I improve my performance in Class 7 Science MCQs?
A5: To improve your performance, practice regularly, revise key concepts, and take mock tests to assess your knowledge.
Q6: Do these MCQs help in school exams?
A6: Yes, these MCQs are aligned with school exam patterns and help in scoring well by strengthening conceptual clarity.
Q7: Can I download these MCQs for offline practice?
A7: Yes, you can download or print these MCQs for convenient offline practice.
