NADPH is a coenzyme that serves as an electron carrier. It is mainly produced during the light-dependent reactions of photosynthesis in plants but also plays a role in other cellular processes like lipid and nucleic acid synthesis. NADPH provides the high-energy electrons required to convert carbon dioxide into glucose in the Calvin Cycle. It is the reduced form of NADP+ and carries electrons as well as a hydrogen ion (H+), ready to donate these to other molecules in biochemical reactions.
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