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The biosynthetic phase depends on the light reactions for the supply of

(a) CO₂ and water Your answer
(b) chlorophyll and RuBisCO Your answer
(c) O₂ and glucose Your answer
(d) ATP and NADPH Correct

Your answer: Correct answer: (d)

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Explanation

Why (d) is correct

The biosynthetic phase needs ATP and NADPH from the light reactions to reduce CO₂ to sugar.

Why the other options are wrong

(a) · your answer CO₂ and water come from outside, not from the light reactions.
(b) · your answer Chlorophyll and RuBisCO are not products of the light reactions.
(c) · your answer O₂ is a by-product and glucose a final product.

NCERT point: This is why the dark reactions stop soon after light is cut off.

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