When electrons flow along the electron transport chains of mitochondria,which of the following changes occurs? A)The pH of the matrix increases. B)ATP synthase pumps protons by active transport. C)The electrons gain free energy. D)NAD⁺ is oxidized.

Question

Quizplus · Accepted Answer

The flow of electrons through the electron transport chain in mitochondria leads to the pumping of protons (H+) from the matrix into the intermembrane space, creating a proton gradient. As protons are pumped out of the matrix, the concentration of H+ decreases in the matrix, making it less acidic (higher pH).

When Electrons Flow Along the Electron Transport Chains of Mitochondria,which