How many Calvin cycle (with some modification) are required to produce 12 molecules of Fructose?
A
12
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B
72
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C
36
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D
96
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Solution
The correct option is A 12 Calvin cycle fixes one molecule of carbon which can be used to make sugar. It takes three turns of the Calvin cycle to create one molecule of glyceraldehyde-3 phosphate. After six turns of the Calvin cycle, two molecules of glyceraldehyde-3 phosphate can be combined to make a fructose molecule. So, total 12 calvin cycle are required to produce 12 molecules of fructose.