Which of the following is the electron donor used for reductive biosynthesis? A) NADH B) NADPH C) FADH₂ D) CoA-SH E) ATP

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NADPH is the electron donor used for reductive biosynthesis. It is produced during the light-dependent reactions of photosynthesis or the pentose phosphate pathway in prokaryotic and eukaryotic cells. NADH is produced during cellular respiration and is not typically used for reductive biosynthesis. FADH2 and CoA-SH are involved in energy metabolism, but not reductive biosynthesis. ATP is also involved in energy metabolism and not directly involved in reductive biosynthesis.

Which of the Following Is the Electron Donor Used for Reductive