NEET Botany Calvin Cycle MCQ Question
Which of the following combinations regarding the Calvin cycle is correct?
6 CO2 molecules require 18 ATP and 12 NADPH to produce 1 glucose.
The Calvin cycle occurs exclusively in the mesophyll cells of C4 plants.
RuBP is regenerated in the cycle using 2 ATP molecules per CO2 fixed.
Each turn of the Calvin cycle requires 3 ATP and 2 NADPH for every CO2 molecule fixed.
Correct Answer
Detailed Explanation
For every CO2 molecule entering the Calvin cycle, 3 ATP and 2 NADPH are indeed required, leading to a total of 18 ATP and 12 NADPH for 6 CO2 molecules to produce 1 glucose. The other statements contain inaccuracies regarding the location of the Calvin cycle and the ATP requirements for regeneration.
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