The Chemiosmotic Theory States That the Proton Potential is Composed

Question

The chemiosmotic theory states that the proton potential is composed of A) [ATP] and [ADP]+[Pi]. B) a pH gradient and [Na+] gradient. C) pH and pNa⁺. D)$$\Delta$$pH and $$\Delta \Psi$$ E) a pH gradient and a [Ca²⁺] wave.

Accepted Answer

The chemiosmotic theory states that the proton potential is composed of two components, the pH gradient ($$\Delta$$pH) and the electrical potential or membrane potential ($$\Delta \Psi$$). This potential drives the synthesis of ATP through ATP synthase by allowing protons to flow down their electrochemical gradient. Choices A, B, C, and E are incorrect as they do not accurately describe the components of the proton potential according to the chemiosmotic theory.