Which of the Following is Not a Function of the Plasma

Question

Which of the following is not a function of the plasma membrane proton pump?
A) hydrolyzes ATP
B) produces a proton gradient
C) generates a membrane potential
D) equalizes the charge on each side of a membrane
E) stores potential energy on one side of a membrane

Accepted Answer

The function of the plasma membrane proton pump is to hydrolyze ATP to produce a proton gradient and generate a membrane potential. It also stores potential energy on one side of the membrane. However, it does not equalize the charge on each side of a membrane, instead, it creates an unequal distribution of charges.