Q.

During dark reaction of photosynthesis neither ATP nor NADPH are utilized in

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a

Carboxylation reactions

b

Reduction stage

c

Regeneration of Ribulose 1,5 bis-phosphate.

d

Regeneration of Phosphoenol pyruvic acid.

answer is A.

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Detailed Solution

In carboxylation reactions of C3and C4 cycles, there is no usage of ATP and NADPH. In reduction stage there is usage of both ATP and NADPH. In the regeneration of both RuBP and PEP there is usage of ATP.
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