試題詳解

8. How is a gradient of H+ ions formed across the inner mitochondrial membrane?
(A) The electron transport chain uses energy from transfer of an electron donated by NADH to pump H across the inner mitochondrial membrane against its electrochemical gradient.
(B) ATP synthase generates a H+ gradient across the inner mitochondrial membrane.
(C) Electrons move fom NADH to a chain of proteins with lower electronegativities.
(D) The electron transport chain uses ATP to pump Ht across the inner mitochondria membrane against its electrochemical gradient.
(E) The electron transport chain of proteins contains pores that are leaky to H+.