Question

question 5
1 pts
which of the following statements about the electron transport chain is true?
nadh and fadh₂ donate their electrons to the chain.
electrons gain energy as they move down the chain.
water is the last electron acceptor.
the electron transport chain is the first step in cellular respiration.

Explanation:

In cellular respiration's electron - transport chain, NADH and FADH₂ donate electrons. Electrons lose energy as they move down the chain. Oxygen, not water, is the last electron acceptor. Glycolysis is the first step in cellular respiration, not the electron - transport chain.

Answer:

NADH and FADH₂ donate their electrons to the chain.