Science & Technology·Prelims Questions

Photosynthesis — Prelims Questions

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Version 1Updated 10 Mar 2026

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Q1medium

Which of the following statements about C4 plants is/are correct? 1. They have Kranz anatomy. 2. Photorespiration is negligible in them. 3. PEP carboxylase is the primary CO₂ fixing enzyme in mesophyll cells. 4. They are generally more efficient in hot and dry conditions compared to C3 plants. Select the correct answer using the code given below:

Q2easy

Consider the following statements regarding the light-dependent reactions of photosynthesis: 1. They occur in the stroma of the chloroplast. 2. Oxygen is released as a byproduct of water photolysis. 3. ATP and NADPH are produced. Which of the statements given above is/are correct?

Q3medium

Which of the following factors is generally considered a limiting factor for photosynthesis in C3 plants under normal atmospheric conditions?

Q4medium

CAM plants are characterized by which of the following adaptations?

Q5easy

Which of the following is NOT a product of the light-dependent reactions of photosynthesis?