Question

question 9
1 pts
the final electron acceptor of the electron transport chain that functions in
aerobic oxidative phosphorylation is...
oxygen.
water.
nad+,
pyruvate.

Explanation:

In aerobic oxidative phosphorylation, electrons are passed through the electron transport chain. Oxygen (\(O_2\)) acts as the final electron acceptor. It combines with electrons (\(e^-\)) and protons (\(H^+\)) to form water (\(H_2O\)). \(NAD^+\) is an electron carrier in earlier stages of cellular respiration (like glycolysis and the citric - acid cycle), not the final electron acceptor in the electron transport chain. Pyruvate is a product of glycolysis and is further metabolized in the citric - acid cycle (in the presence of oxygen) but is not involved in the electron transport chain as a final electron acceptor.

Answer:

oxygen.