| Glycolysis | 1st step in releasing the energy of glucose, in which a molecule of glucose is broken into 2 molecules of pyruvic acid |
| Fermintation | process by which cells release energy in the absence of oxygen |
| Lactic Acid | produced in muscles during rapid exercise when the body can't suppy enough oxygen to the tissues; lactic acid fremintation= pyruvic acid + NADH ~> lactic acid + NAD+ |
| Alcohol | in the absence of oxygen, yeast and a few other microrganisms use alcoholic fermintation, forminig ethyl alcohol and carbon dioxide as wastes |
| The Krebs Cycle | pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions |