PHOTOSYNTHESIS
THE CALVIN CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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3
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6
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1
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12
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Detailed explanation-1: -For the synthesis of one molecule of glucose, the Calvin cycle repeats six times. The Calvin cycle is a light-independent reaction in photosynthesis and takes place in three steps, viz., carbon fixation, reduction and regeneration. For the fixation of six molecules of CO2, six turns of the cycle are required.
Detailed explanation-2: -A molecule of glucose is made up of six carbon molecules. Therefore, six turns will be required for the synthesis of one molecule of glucose by Calvin cycle.
Detailed explanation-3: -Six turns of Calvin cycle are required to generate one mole of glucose.
Detailed explanation-4: -There are 6 atoms of carbon required for the synthesis of one glucose molecule. Hence, to produce one molecule of hexose sugar, six turns of Calvin cycle are required.
Detailed explanation-5: -Because the carbohydrate molecule has six carbon atoms, it takes six turns of the Calvin cycle to make one carbohydrate molecule (one for each carbon dioxide molecule fixed).