Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 26 (12 MCQs)

Quiz Instructions

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1. Why is photosynthesis important for life on Earth?

Correct Answer: D) Photosynthesis is crucial for life on Earth as it produces oxygen and is the foundation of the food chain.

2. Which mineral ion is needed by a plant in order to build chlorophyll?

Correct Answer: C) Magnesium.

3. Which of the following methods can be used to measure the rate of photosynthesis in a plant?

Correct Answer: B) Measuring the amount of oxygen produced.

4. Assertion:Photorespiration is a wasteful process.Reason:In photorespiratory pathway, there is no synthesis of sugars or ATP.

Correct Answer: A) Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

5. Which of the following energy transformations occur when humans use energy from food to exercise?

Correct Answer: D) Chemical to mechanical to thermal.

6. How does glucose travel within a producer (plant)? Name the structure.

Correct Answer: B) Phloem.

7. Which two things are produced when a plant breaks down sugar to release energy?

Correct Answer: D) Carbon dioxide and water.

8. What does ATP synthase do?

Correct Answer: A) Create ATP through chemiosmosis.

9. Chloroplast is an ..... that converts ..... energy into ..... through a process known as .....

Correct Answer: A) Organelle, light, glucose, photosynthesis.

10. What structure in the leaf is involved with gas exchange?

Correct Answer: B) Stomata.

11. Division of labour in chloroplast is between

Correct Answer: A) Stroma and membrane system.

12. The pyrrole rings are linked to each other by

Correct Answer: C) Methine bridge.