What Is the Fate of NADH After It Donates Its

question 89

Multiple Choice

What is the fate of NADH after it donates its electrons to the electron transport system?

• A) NAD⁺ is excreted from the cell and sent to the liver for final degradation.
• B) NADH is used for cellular biosynthesis.
• C) NAD⁺ is re-reduced by the TCA cycle or glycolysis and returns to electron transport system, where the process is repeated.
• D) NAD⁺ is fed into the TCA cycle for oxidation of CO₂.

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