The oxidation of one $NADH_2$ yields (in $ATP$)

Identify the site of oxidative phosphorylation.

Cytochromes are found in

Match the electron carriers and reduced substances in Column $I$ with respiratory complexes in Column $II$. Choose the correct option given below.

Column $I$	Column $II$
$i.$ $FADH_2$	$a.$ Complex $III$
$ii.$ Ubiquinol	$b.$ Complex $IV$
$iii.$ $NADH + H^{+}$	$c.$ Complex $II$
$iv.$ Cytochrome $C$	$d.$ Complex $I$

In an electron transport chain in terminal oxidation,the cytochrome which donates electrons to $O_2$ is

Oxidative phosphorylation occurs during the process of