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Biology Ch. 9
| Term | Definition |
|---|---|
| Calorie (Uppercase) | Measure of heat energy in food; equivalent to 1000 calories |
| Cellular Respiration | Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. |
| Aerobic | Process of that requires oxygen. |
| Anaerobic | Process that does not require oxygen. |
| Glycolysis | First set of reactions in cellular respiration in which a molecule of glucose is broken into two molecules of pyruvic acid. |
| NAD+ | Electron carrier involved in glycolysis. |
| Krebs Cycle | Second stage of cellular respiration in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions. |
| Matrix | Innermost compartment of the mitochondrion. |
| Fermentation | Process by which cells release energy in the absence of oxygen. |
| calorie (lowercase) | amount of energy needed to raise the temperature of water 1 degree Celsius. |
| Electron Transport Chain | Series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions. |