NADH is oxidised by which coenzyme in the ETC?
Correct answer: B. Coenzyme Q
- A. Coenzyme C
- B. Coenzyme Q
- C. Coenzyme b
- D. Coenzyme a
Explanation
In the electron transport chain (ETC), NADH acts as an electron donor, not an oxidizer. It transfers its electrons to Coenzyme Q (also called ubiquinone) through a series of carriers. Coenzyme Q accepts these electrons and becomes reduced to ubiquinol (CoQH₂), while NADH is oxidized back to NAD⁺. This transfer helps drive the flow of electrons that ultimately produces ATP."
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