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Biology Ch. 9

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