Question

What is the rate of electron transfer when proton motive force is high?

(a) Faster

(b) Slower

(c) Moderate

(d) None

This question was posed to me in unit test.

This is a very interesting question from Regulation of Oxidative Phosphorylation topic in division Oxidative Phosphorylation and Photophosphorylation of Biochemistry

Answer 1

Right choice is (b) Slower

For explanation I would say: When proton motive force is high, rate of electron transfer is slower.