NEET Biology question

To form one molecule of glyceraldehyde-3-phosphate (from 3 CO2) in the Calvin cycle

(A)9 ATP and 36 NADPH are required
(B)6 ATP and 6 NADPH are required
(C)3 ATP and 3 NADPH are required
(D)9 ATP and 6 NADPH are requiredCorrect

Answer: (D)

Solution

Fixing 3 CO2 molecules (via 3 turns of the cycle) needs 3 ATP (carboxylation support is minimal, main ATP use is in reduction and regeneration) + reduction of 3 PGA needs 3 NADPH and 3 ATP,

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Question ID VK-128215