Which of the following two components constitute the proton-motive force?
A)an ATP/H⁺ ratio and an ion equilibrium
B)pH gradient and an ATP/H⁺ ratio
C)a membrane potential and a pH gradient
D)an ATP/H⁺ ratio and a membrane potential

Question

Quizplus · Accepted Answer

The proton-motive force is composed of two components: a membrane potential created by a separation of charge across the membrane and a pH gradient created by the difference in proton concentration across the membrane. The ATP/H⁺ ratio is not a component of the proton-motive force, but ATP can be produced by utilizing the proton-motive force. The ion equilibrium is not a component of the proton-motive force.

Which of the Following Two Components Constitute the Proton-Motive Force