Question

How many ATP molecules are required to produce one molecule of glucose?

• A. 18
• B. 15
• C. 12
• D. 9

Answer 1

Answer:

A. 18

• Calvin cycle uses 18 molecules of ATP and 12 molecules of NADPH to synthesize one molecule of glucose.

• These ATP and NADPH are produced from the light reactions of photosynthesis.