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To synthesise one molecule of glucose, the Calvin cycle uses

A18 ATP and 12 NADPH per glucose
B6 ATP and 6 NADPH per glucose
C9 ATP and 9 NADPH per glucose
D36 ATP and 24 NADPH per glucose
Answer & Solution
Correct answer: A. 18 ATP and 12 NADPH per glucose
**Per CO2 fixed:** 3 ATP + 2 NADPH. **To make one glucose (6 CO2 fixed):** 6 × 3 = 18 ATP and 6 × 2 = 12 NADPH. Your syllabus's in/out table explicitly states these values.
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