why-is-oxygen-considered-the-final-electron-acceptor-in-the-electron-transport-c

Question

Why is oxygen considered the final electron acceptor in the electron transport chain?

Accepted Answer

Because it accepts electrons from Complex IV and forms water.

Answer

Because it synthesizes ATP from ADP and inorganic phosphate.

Answer

Because it acts as the initial electron donor in the electron transport chain.

Answer

Because it directly pumps protons into the intermembrane space.