Also known as the citric acid cycle. Coenzyme a is the carrier, transporter of acetyl-coa. Nad+ [electron carriers] becomes nadh and carbon dioxide is released. For every pyruvate, there is an acetyl-coa. For every glucose, there are 2 pyruvates, therefore the krebs cycle occurs two times for every glucose. Bonds are being broken and carbon are being released as carbon dioxide. Total so far: 6co2, 10 nadh, 2fadh2, 4atp. Located in the crista of the mitochondria [inner mitochondrial membrane] There are 4 large protein complexes: electron carriers, a small peripheral protein, a small lipid, an associated protein. Atp synthase is the enzyme complex consisting of a atpase catalytic knob component and a membrane-bound, proton-transparent base component rotor. From 1 molecule of glucose, you can make from 32-36 atp"s. Body burns fat to make atp and released as heat. Fat is broken down into nad+ and fad+ Brown fat cells are very rich in mitochondria.