NEET Botany Calvin Cycle MCQ Question
How many molecules of ATP and NADPH are required to fix 12 molecules of CO2 into glucose using the Calvin cycle?
36 ATP and 24 NADPH
18 ATP and 12 NADPH
72 ATP and 48 NADPH
60 ATP and 40 NADPH
Correct Answer
Detailed Explanation
To fix one molecule of CO2, 3 ATP and 2 NADPH are required. Therefore, for 12 molecules of CO2, 36 ATP (12 x 3) and 24 NADPH (12 x 2) are needed, which results in 72 ATP and 48 NADPH for the synthesis of two glucose molecules.
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