The double mitochondrial membrane allows the generation of potential energy because the A) composition and chemical structure of the inner and outer membranes are very similar. B) inner membrane is highly permeable to most substances allowing ions to flow into the matrix. C) inner membrane is highly impermeable not allowing passage of ions and molecules. D) outer membrane is highly impermeable not allowing passage of ions and molecules. E) outer membrane is highly impermeable allowing H⁺ ions to accumulate on the inner surface of the inner mitochondrial membrane.

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Quizplus · Accepted Answer

The inner mitochondrial membrane's high impermeability to ions and molecules is crucial for establishing the electrochemical gradient necessary for ATP synthesis during oxidative phosphorylation. This gradient is generated by the electron transport chain, which pumps protons from the mitochondrial matrix to the intermembrane space, creating a potential energy difference across the inner membrane.

The Double Mitochondrial Membrane Allows the Generation of Potential Energy