NADH and FADH₂ are oxidized in the electron-transport chain.
Determine if the statement is true or false:
Water is the final electron acceptor of the ETC and its production is the sole driver for ATP synthesis.
Explain your answer.

• A. True, water is the final electron acceptor of the ETC and the production of water solely provides the energy needed for ATP synthesis.
• B. False, oxygen is the final electron acceptor of the ETC, not water. Other processes contribute to the concentration difference of H⁺ that drives ATP synthesis, not just water production alone.
• C. False, water is the final electron acceptor of the ETC. Other processes contribute to the concentration difference of H⁺ that drives ATP synthesis, not just water production alone.
• D. False, the production of water solely provides the energy needed for ATP synthesis but oxygen is the final electron acceptor of the ETC, not water.

Answer: (B)