PHOTOSYNTHESIS
THE CALVIN CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are used to make glucose.
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They are reshuffled to make CO2 by adding ATP.
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They exit the cycle.
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They are reshuffled to make RuBP by adding ATP.
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Detailed explanation-1: -The remaining G3P molecules stay in the cycle to be formed back into RuBP, which is ready to react with more CO2. Photosynthesis forms a balanced energy cycle with the process of cellular respiration.
Detailed explanation-2: -In the last stage of the Calvin Cycle, RuBP is regenerated, which enables the system to prepare for more CO2 to be fixed.
Detailed explanation-3: -Six “turns” of the Calvin cycle use chemical energy from ATP to combine six carbon atoms from six CO2 molecules with 12 “hot hydrogens” from NADPH. The result is one molecule of glucose, C6H12O6.
Detailed explanation-4: -RUBP Regeneration refers to the cyclical process where the photosynthetic enzyme Rubisco fixes carbon dioxide into the sugars that fuel plant growth and productivity.