What is the source of the majority of the energy needed by muscles for physical activity that continues for longer than 30 or 40 minutes

belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:8| Question number:25

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2022-09-20

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What is the source of the majority of the energy needed by muscles for physical activity that continues for longer than 30 or 40 minutes?

ATP stored in muscle fi bres.
glycolysis of glucose in the cell cytoplasm
ATP produced from creatine phosphate stored in muscle fi bres
aerobic respiration of pyruvic acid in mitochondria

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saraalalwane

2022-09-20

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D: Choice A lasts for a few seconds only. Choice B can provide energy for a couple of minutes. Choice C can provide energy for vigorous activity lasting about 15 seconds.

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What is the source of the majority of the energy needed by muscles for physical activity that continues for longer than 30 or 40 minutes

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