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Question

For synthesis of a molecule of glucose, the requirement of ATP and NADPH is respectively

A
15 and 10
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B
33 and 22
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C
12 and 8
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D
18 and 12.
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Solution

The correct option is B 18 and 12.
For every CO2 molecule entering the Calvin cycle, 3 molecules of ATP and 2 NADPH are required. To make one molecule of glucose six CO2 molecules required and the cycle turns six times.
So the number of total ATP=3X6=18.
The number of total NADPH=3X4=12.
So the correct option is '18 and 12'.

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