What Compound Provides the Reducing Power for Calvin Cycle Reactions

Question

What compound provides the reducing power for Calvin cycle reactions?
A)ATP
B)NADP⁺
C)NADPH
D)NAD⁺
E)NADH

Accepted Answer

NADPH is the compound that provides reducing power for Calvin cycle reactions. It is produced during the light-dependent reactions in photosynthesis and then serves as a source of electrons and hydrogen ions for the reduction of carbon dioxide to carbohydrate in the Calvin cycle. ATP, NADP⁺, NAD⁺, and NADH are not the compounds that provide reducing power for the Calvin cycle.