Which part of the mitochondrial ATP synthase binds H+ and interacts with the a s

Question

Which part of the mitochondrial ATP synthase binds H+ and interacts with the a subunit to transport the H+ down its concentration gradient, in order to drive ATP synthesis?

A. Alpha subunit

B. beta subunit

C. gamma subunit

D. B subunit

E. C subunit

Cytochrome c carries electrons from

A. A.the NADH dehydrogenase complex to the cytochrome c reductase complex

B. the cytochrome c reductase complex to the cytochrome c oxidase complex

C. the cytochrome c oxidase complex to the NADH dehydrogenase complex

D. the cytochrome c reductase complex to the NADH dehydrogenase complex

E. .the cytochrome c oxidase complex to the cytochrome c reductase complex

Explanation / Answer

1)Answer is B beta subunit

Though beta subunit of F0 ATPase complex provides the proton channel for the translocation of H+ ions across the membrane.

2)Answer is B. the cytochrome c reductase complex to the cytochrome c oxidase complex

Cytochrome c or cyt c present in inner mitochondrial membrane and it transfers electron from complexes III to Complexes IV.

Complex III- Coenzyme Q- Cyt C reductase

Complex IV- Cyt C oxidase

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