Which one of following is complex V of the ETS of inner mitochondrial membrane?
a)	NADH Dehydrogenase	b)	Cytochrome oxidase
c)	Ubiquinone	d)	ATP synthase

(d)

The complex V of ETS of mitochondrial membrane is ATP synthase, which has a head piece, stalk and a base piece. Out of these, the head piece is identified as the coupling factor 1(F1), stalk portion is necessary for binding  to inner mitochondrial membrane and base piece is isolated as  and present within the inner mitochondrial membrane.