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cytochrome| Protein responsible for part of the process of respiration by which food molecules are broken down in aerobic organisms. Cytochromes are part of the electron transport chain, which uses energized electrons to reduce molecular oxygen (O2) to oxygen ions (O2–). These combine with hydrogen ions (H+) to form water (H2O), the end product of aerobic respiration. As electrons are passed from one cytochrome to another, energy is released and used to make ATP. |
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