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Botany-Light Reaction

NEET Botany Light Reaction MCQ Question

Type: MCQ-conceptual-Hard-Class 11

Which of the following statements about the light reactions of photosynthesis is/are correct?

A

Non-cyclic photophosphorylation involves both PS II and PS I working in series.

B

Cyclic photophosphorylation produces both ATP and NADPH.

C

Accessory pigments help in absorbing a wider range of wavelengths and protect chlorophyll a.

D

Light reactions occur only in the thylakoid membranes of chloroplasts.

Correct Answer

Option A

Detailed Explanation

Statement A is correct as non-cyclic photophosphorylation involves both photosystems. Statement B is incorrect because cyclic photophosphorylation only produces ATP. Statement C is correct as accessory pigments do help in light absorption and protection. Statement D is incorrect since light reactions occur in the thylakoid membranes, not limited to them.

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