Question

which is the final electron acceptor in the electron transport chain of cellular respiration?
nadh
fadh₂
oxygen
carbon dioxide

Explanation:

In cellular respiration's electron - transport chain, electrons are passed through a series of carriers. Oxygen has a high affinity for electrons and combines with hydrogen ions to form water at the end of the chain, making it the final electron acceptor. NADH and FADH₂ are electron donors, not acceptors, and carbon dioxide is a product of other stages of cellular respiration, not the final electron acceptor.

Answer:

C. oxygen