The NADPH required for the reduction of 3PG to G3P comes from
A) the light-independent reactions.
B) the light reactions.
C) the synthesis of ATP.
D) the Calvin cycle.
E) oxidative phosphorylation.

Question

Quizplus · Accepted Answer

NADPH is produced during the light reactions of photosynthesis through the electron transport chain. This NADPH is then used during the Calvin cycle to reduce 3-phosphoglycerate (3PG) to glyceraldehyde 3-phosphate (G3P).

The NADPH Required for the Reduction of 3PG to G3P