PHOTOSYNTHESIS
THE CALVIN CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Not enough water is available for hydrolysis.
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Not enough sunlight is available for electron excitation.
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Not enough CO2 are available for fixing.
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Complex 1 is not functioning well.
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RUBP are not getting recycled efficiently.
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Detailed explanation-1: -Energy from ATP and NADPH reduce the 3PG molecules to form another 3 carbon compound, glyceraldehyde-3-phosphate (G3P).
Detailed explanation-2: -Two G3P molecules will be used to produce glucose and the remaining molecules will continue through the Calvin Cycle.
Detailed explanation-3: -In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP+, respectively.
Detailed explanation-4: -How are the larger numbers of ATP and NADPH molecules used during the Calvin cycle consistent with the high value of glucose as an energy source? Glucose is the highly reduced form that is produced from the calvin cycle. It requires the consumption of larger numbers of ATP and NADPH molecules during this process.