Three Systems Regulate Energy Production

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All three systems regulate energy production as they help create ATP. The creatine phosphate system is the first system mentioned as it is the quickest of the systems. In this system, there is a reversible reaction, where phosphocreatine and ADP form ATP and creatine. This reaction happens quickly and therefore the system does not provide long lasting energy; however, there is a large amount of energy production in this short amount of time. Activity beyond a few seconds requires more substantial energy production, as with anaerobic glycolysis. In anaerobic glycolysis, glucose is transformed into pyruvate and 2 net ATP are also produced. There is enough ATP production for about 2 minutes of activity. Also, 2 NADH are produced that are then

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