In $ETS$,the final electron acceptor is:

Mobile electron carriers in $ETS$ in the mitochondrial membrane are

Identify the site of oxidative phosphorylation.

Given below are two statements.
Statement-$I$: Cytochrome $c$ is a small, copper-containing protein loosely attached to the inner membrane.
Statement-$II$: Cytochrome $c$ acts as a mobile electron carrier transferring electrons between complex $I$, $II$, and $IV$.
In the light of the above statements, choose the correct answer from the options given below.

Oxygen is critical for aerobic respiration. Explain its role with respect to $ETS$.

Oxidative phosphorylation is related to the formation of