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 regenerated to make CO2 by adding ATP.
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They exit the cycle.
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They are regenerated 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: -After three cycles, a three-carbon molecule of G3P leaves the cycle to become part of a carbohydrate molecule. The remaining G3P molecules stay in the cycle to be regenerated into RuBP, which is then ready to react with more CO2. Photosynthesis forms an energy cycle with the process of cellular respiration.
Detailed explanation-3: -The third and final stage of the Calvin cycle is the regeneration of RuBP. Most of the G3P molecules produced in the previous step. More ATP is used to recycle the G3P and produce RuBP that will be used in carbon fixation, allowing the cycle to continue.
Detailed explanation-4: -The remaining PGAL are turned into RuBP. required in order to build one molecule of glucose. – ATP – attaches a phosphate group to the glucose – NADPH – Provides Hydrogens and electrons. The enzyme Rubisco catalyzes the reaction.