Oxygen is an essential requirement for aerobic respiration but it enters he respiratory process at the end? Discuss.

Explanation

Aerobic respiration requires oxygen in order to generate ATP . Oxygen is strongly electronegative element and acts as final acceptor is respiratory process.
It pulls `e^(-)` (electrons ) that energy from the end, though itts end, transport chain ETC and take up protons from medium to from water.
`O_(2)` enters in the respiratory process at the end, though it's though it's presence is vital. It drives the process of aerobic respiration by removing hydrogen from the system. Thus, acting as final hydrogen acceptor.
The energy is produced by the process of oxidative phosphorylation, utilising the energy of exdation reduction reactions