Which of the following events at the electron-transport chain occurs last?
A) Hydrogen ions diffuse into inner mitochondrial compartment.
B) Hydrogen ions are moved from inner to outer mitochondrial compartment.
C) The movement of hydrogen ions through special channels is coupled to ATP production.
D) A hydrogen ion concentration gradient is established.
E) NADH transfer electrons to the electron-transport chain.

Question

Quizplus · Accepted Answer

The movement of hydrogen ions through ATP synthase channels back into the mitochondrial matrix is the final step in the electron transport chain that directly facilitates ATP production. This process occurs after a gradient has been established and hydrogen ions have been moved across the membrane.

Which of the Following Events at the Electron-Transport Chain Occurs