試題詳解

17. Which of the following descriptions about V-ATPases is NOT correct?
(A) They are ATP-dependent proton pumps.
(B) They are present in intracellular membranes in all eukaryotes and at the plasma membrane of certain specialized cells.
(C) They are involved in acidification of endosomes.
(D) They generate the proton motive force as a driving force for primary transporters.
(E) They are regulated by reversible dissociation of the V1 and Vo domains.