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Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley
Edition 9ISBN: 0073523534Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley
Edition 9ISBN: 0073523534What are the rate-limiting enzymes for the following metabolic pathways? ATP-PC system? Glycolysis? Krebs cycle? Electron transport chain?
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Biochemical pathways are coordinated series of reactions. The reactions are catalyzed by enzymes, which act as catalysts. The pathways must be under tight regulation depending on the flux of the substrate molecules. The control or regulation is generally achieved by altering the enzyme activity. Regulation of one or more enzymes in a biochemical pathway provides means to control the rate of that particular pathway.
Most of the metabolic pathways have one or two enzymes that regulate the speed of the pathway. These enzymes are called “rate limiting’’ enzymes or the reaction catalyzed by them called “rate limiting step.’’
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