Question

Which one of the following is complex V of the ETC present in the inner mitochondrial membrane?

• A. NADH dehydrogenase
• B. Cytochrome oxidase
• C. Ubiquinone
• D. ATP synthase

Answer 1

The correct option is D ATP synthase

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 coupling factor 1 (F₁), stalk portion is necessary for binding F₁ to inner mitochondrial membrane and base piece is isolated as F₀ and present within the inner mitochondrial membrane.