Question

In the process of aerobic respiration, the role of oxygen is

• A. To couple with $C$ to form $C{O}_2$ in chemiosmosis
• B. To form ATP
• C. To contribute $H^{+}$ to the Krebs cycle
• D. To make PGAL
• E. To accept electrons from the electrons transport chain (ETC)

Answer 1

The correct option is E To accept electrons from the electrons transport chain (ETC)

In Electron transport chain, electron is transferred in series of co-enzymes and cytochrome. Oxygen is the final acceptor of electron in this series. Oxygen after accepting electron reacts with protons to form metabolic water.