daphne5681 daphne5681

11-01-2024
Chemistry

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Calcium ions are released by the sarcoplasmic reticulum in the actin filament. What is the role of calcium ions in the formation of the cross bridge between actin and myosin?
1) Causing the myosin head to move
2) Causing the actin filament to move
3) Causing the cross bridge to form
4) Causing the release of ATP

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