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 anaerobic glycolysis system of providing energy:(Cambridge Checkpoints 2019).
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uses only carbohydrates
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is associated with submaximal exercise.
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produces relatively few ATP molecules.
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is activated two minutes after the onset of maximal exercise.
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Explanation:
Detailed explanation-1: -Anaerobic glycolysis serves as a means of energy production in cells that cannot produce adequate energy through oxidative phosphorylation. In poorly oxygenated tissue, glycolysis produces 2 ATP by shunting pyruvate away from mitochondria and through the lactate dehydrogenase reaction.
Detailed explanation-2: -During high intensity exercise the products of anaerobic glycolysis namely pyruvate and H+ accumulate rapidly. Lactate is formed when one molecule of pyruvate attaches to two H+ ions.
Detailed explanation-3: -Anaerobic metabolism uses glucose as its only source of fuel and produces pyruvate and lactic acid.
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