Which statement about the chemiosmotic theory is CORRECT?
A) Electron transfer in mitochondria is accompanied by an asymmetric release of protons on one side of the inner mitochondrial membrane.
B) It predicts that oxidative phosphorylation can occur, even in the absence of an intact inner mitochondrial membrance.
C) The effect of uncoupling reagents is a consequence of their ability to carry electrons through membranes.
D) The membrane ATP synthase has no significant role in the chemiosmotic theory.
E) All of the statements are correct.

Question

Quizplus · Accepted Answer

The statement that "electron transfer in mitochondria is accompanied by an asymmetric release of protons on one side of the inner mitochondrial membrane" is correct. This proton gradient is then used to drive ATP synthesis. Option B is incorrect as oxidative phosphorylation requires an intact inner mitochondrial membrane for the formation of a proton gradient. Option C is incorrect as uncoupling reagents disrupt the proton gradient and prevent ATP synthesis. Option D is incorrect as the membrane ATP synthase plays a crucial role in the chemiosmotic theory by using the energy from the proton gradient to produce ATP.

Which Statement About the Chemiosmotic Theory Is CORRECT