What is the source of chemical energy used to power a muscle cell in your arm?
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Heya!!
✨Adenosine Triphosphate (ATP) is the immediate source of (chemical) energy for muscle contraction. Very little ATP is stored in muscle fibres (= 'muscle cells'), only enough to power muscle contractions for a few seconds. The ATP in muscles must be constantly replenished as it is used for various processes.✨
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Explanation:
ATP ( Adenosine triphosphate)......
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