RE-NEET 2026 Botany Photorespiration Multiple Correct Question
Which of the following statements regarding photorespiration are correct? (a) Do not occur in C₃ plants (b) CO₂ is consumed and O₂ is generated (c) Phosphoglycolate is formed (d) No synthesis of ATP and NADPH
(c) and (d) only
(b) and (d) only
(a) and (b) only
(a) and (d) only
Correct Answer
Detailed Explanation
Photorespiration primarily occurs in C₃ plants, where oxygen competes with carbon dioxide for the active site of RuBisCO, leading to the formation of phosphoglycolate. This process does not produce ATP or NADPH, as it is not part of the light-dependent reactions of photosynthesis. Therefore, statements (c) and (d) are correct.
Option (a) is incorrect because photorespiration does occur in C₃ plants. Option (b) is also incorrect since CO₂ is not generated during photorespiration; instead, it consumes CO₂. Thus, the correct answer is (c) and (d) only, which aligns with the official NTA key.
Found an issue with this question?
Related Questions
More from Photosynthesis
The Calvin cycle proceeds in three stages 1. Reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH 2...
Assertion: CO₂ is transported from mesophyll cells to bundle sheath of chloroplasts in C₄ plants. Reason: RuBP is called final acceptor in C₄ plants.
Which factor is not limiting in normal conditions for photosynthesis