What compound provides the reducing power for the Calvin cycle reactions?

Question

Quizplus · Accepted Answer

NADPH is the compound that provides reducing power for the Calvin cycle reactions. It is generated in the light-dependent reactions of photosynthesis when light is absorbed by pigments such as chlorophyll, and then used to reduce carbon dioxide to form sugars in the Calvin cycle. ATP is involved in the Calvin cycle as an energy source, but not as a reducing agent. FAD and FADH2 are not involved in photosynthesis. CO2 is a substrate for the Calvin cycle, but not a reducing agent.

What Compound Provides the Reducing Power for the Calvin Cycle