PHYSIOLOGY
MUSCLE ENERGETICS ATP AND CP
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the fuel for the ATP-PC energy system?
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glucose
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phosphocreatine/creatine phosphate (CP)
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fatty acids
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glucagon
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Explanation:
Detailed explanation-1: -The ATP-PC system uses a stored molecule in the muscle called creatine phosphate (CP) to resynthesise ATP. It is the breakdown of this molecule that releases the energy needed to rejoin the ADP and free phosphate to form ATP. This system is anaerobic as it works without oxygen, and does not produce any waste products.
Detailed explanation-2: -The phosphocreatine (PC) system uses a substance called creatine phosphate to ‘glue’ or resynthesise the third phosphate molecule back on to ADP to make ATP.
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