The concentration of H⁺ ions inside the mitochondrial matrix is lower than it is in the cytosol or the mitochondrial intermembrane space.What would be the IMMEDIATE effect of a membrane-permeable compound that carries and releases protons into the mitochondrial matrix?

Question

Quizplus · Accepted Answer

The release of protons into the mitochondrial matrix by a membrane-permeable compound would increase the proton concentration inside the matrix, leading to a decrease in the pH. This would inhibit ATP synthesis because the proton gradient across the inner mitochondrial membrane is necessary for the production of ATP by ATP synthase. Therefore, choice B is the best option. The release of protons into the matrix would not directly affect the electron-transport chain, import of ADP, or the citric acid cycle.

The Concentration of H+ Ions Inside the Mitochondrial Matrix Is

The Concentration of H⁺ Ions Inside the Mitochondrial Matrix Is