Respiration — practice question

Mitochondria occur in eukaryotic cells and are surrounded by a double membrane. The outer membrane allows pyruvate to pass through; pyruvate is the main product of ................................ . The inner membrane is infolded to create ................................ , which provide a larger surface area for the membrane. The carrier proteins of the electron transport chain, together with the protein complex that generates ATP and is called ................................ , are located in the inner membrane. As electrons move along the chain, a high concentration of ................................ accumulates in the intermembrane space because of electron transport chain activity. The ................................ of the mitochondrion, which contains enzymes, is the site of the link reaction and the ................................ .