ATP is crucial for muscle contraction, supplying energy for the movement of myosin heads and powering the active reuptake of calcium ions by the sarcoplasmic reticulum from the sarcoplasm.
ATP provides energy for moving myosin heads and for the sarcoplasmic reticulum to actively reabsorb calcium ions from the sarcoplasm during muscle contraction.
| Front | State the roles of ATP in muscle contraction. |
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| Back | ATP & muscle contraction:
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