The total requirement of ATP and NADPH for ea | vedclass

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(C) In the Calvin cycle,the fixation and reduction of one molecule of $CO_2$ involves three distinct phases: carboxylation,reduction,and regeneration.

Vedclass · Accepted Answer

$3\, ATP$ and $2\, NADPH$

Vedclass · Answer

(C) In the Calvin cycle,the fixation and reduction of one molecule of $CO_2$ involves three distinct phases: carboxylation,reduction,and regeneration.During the reduction phase,$2$ molecules of $ATP$ and $2$ molecules of $NADPH$ are used for the reduction of $1,3$-bisphosphoglycerate to glyceraldehyde-$3$-phosphate.Additionally,$1$ molecule of $ATP$ is required during the regeneration phase to convert ribulose-$5$-phosphate back into ribulose-$1,5$-bisphosphate.Therefore,the total requirement for fixing one molecule of $CO_2$ is $3$ molecules of $ATP$ and $2$ molecules of $NADPH$.

The total requirement of $ATP$ and $NADPH$ for each molecule of $CO_2$ fixed and reduced in photosynthesis in the Calvin cycle is

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