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Assertion : Each molecule of ribulose-1 ...

Assertion : Each molecule of ribulose-1 ,5 biphosphate fixes one molecule of `CO_(2)`
Reason : Three molecules of NADPH and two ATP are required for fixation of one molecule of `CO_(2)`

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason s not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
Each molecule of ribulose-1, 5-biphosphate fixes one molecule of carbon dioxide with the addition of water, thereby resulting in the formation of two molecules of 3-phosphoglyceric acid (3-PGA). The fixation and reduction of one molecule of `CO_(2)` requires three molecules of ATP and two of NADPH, Coming from the photochemical reactions.
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