Original sentence: The malate-aspartate shuttle (sometimes also the malate shuttle) is a biochemical system for translocating electrons produced during glycolysis across the impermeable inner membrane of the mitochondrion for oxidative phosphorylation in eukaryotes
Edited sentence: The malate-aspartate shuttle (sometimes also the malate shuttle) is a biochemical system for translocating electrons produced during glycolysis across the impermeable (Wont allow many molecules across the membrane) inner membrane of the mitochondrion for oxidative phosphorylation in eukaryotes