TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To add energy to the intermediates
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To confuse the intermediates
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There is no reason; it is absurd
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To remove energy from the intermediates
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Detailed explanation-1: -In the first stage of the Calvin cycle, the light-independent reactions are initiated and carbon dioxide is fixed. In the second stage of the C3 cycle, ATP and NADPH reduce 3PGA to G3P. ATP and NADPH are then converted into ATP and NADP+. In the last stage, RuBP is regenerated.
Detailed explanation-2: -In the second stage, ATP and NADPH are used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate (G3P). This stage gets its name because NADPH donates electrons to, or reduces, a three-carbon intermediate to make G3P.
Detailed explanation-3: -The intermediates of the Calvin Cycle include ADP, NADP+, inorganic phosphate, and 3-phosphoglycerate.
Detailed explanation-4: -In the presence of water, the intermediate chemical breaks up into two molecules of phosphoglycerate or PGA. 3-PGA is the first stable product of the Calvin cycle.
Detailed explanation-5: -Stage II is called the Calvin cycle. This stage combines carbon from carbon dioxide in the air and uses the chemical energy in ATP and NADPH to make glucose.