PHYSIOLOGY
MUSCLE ENERGETICS ATP AND CP
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The by-products of the aerobic energy system include
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lactic acid, water and energy for ATP resynthesis.
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lactic acid, water and carbon dioxide
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carbon dioxide, water and energy for ATP resynthesis.
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carbon dioxide, water and lactic acid.
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Explanation:
Detailed explanation-1: -Since our muscles don’t store much ATP, we must constantly resynthesize it. The hydrolysis and resynthesis of ATP is thus a circular process-ATP is hydrolyzed into ADP and Pi, and then ADP and Pi combine to resynthesize ATP. Alternatively, two ADP molecules can combine to produce ATP and AMP: ADP + ADP = ATP + AMP.
Detailed explanation-2: -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.
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