| A | B |
| cellular respiration | process to relaese energy to carry out the 8 life processes |
| ATP | molecules that package energy; adenosine triphosphate |
| oxidation | chemical change in which an atom or molecule loses electrons |
| reduction | gaining of electrons |
| oxidation-reduction reaction | the oxidized substance transfers energy to a reduced substance; when energy is lost it is always picked up by another |
| biochemical pathway | A sequence of chemical reactions that leads to a particular result in a living cell |
| aerobic respiration | respiration requiring the use of free oxygen |
| anaerobic respiration | respiration that does not require the use of oxygen |
| glycolysis | split of glucose into two 3-carbon sugars to produce pyruvic acid and ATP |
| Krebs cycle | a series of chemical steps in which what was the original glucose molecule is broken down further to harvest energy and CO2 |
| electron transport chain | highly organized system of enzymes and coenzymes to convert electron carriers into ATP molecules |
| lactic acid | in the absence of oxygen, pyruvic acid is converted into this and causes a feeling of fatigue and reduces the ability of cells to do normal work |
| fermentation | anaerobic respiration of yeast producing carbon dioxide and alcohol |