For fixing 3 molecules of CO2 in Calvin cycle, what is needed?
Correct answer: A. 9ATP + 6NADPH2
- A. 9ATP + 6NADPH2
- B. 18ATP + 12NADPH2
- C. 6ATP + 9NADPH2
- D. 3ATP + 3NADPH2
Explanation
The chemical equation of dark reaction is: 3CO2 + 6NADPH + 9ATP → (CH2O)3 + 6NAPD +9ADP+ 9Pi + 3H20 (Carbohydrate) For every molecule of CO2 entering the Calvin cycle, 3 molecules of ATP and 2 molecules of NADPH are used.
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