Question

An important function of the mitochondrial inner membrane is to provide a selectively permeable barrier to the movement of water-soluble molecules and thus generate different chemical environments on either side of the membrane. However, many of the substrates and products of oxidative phosphorylation are water-soluble and must cross the inner membrane. How does this transport occur?

Answer 1

There are many protein carriers that helps the molecules in transfer.... some examples are cytochrome b, c, Ubiquinone etc.