| A | B |
|---|
| calorie | the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius |
| cellular respiration | the process that releases energy from food in the presence of oxygen |
| aerobic | pathways of cellular respiration that require 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 |
