Biology, 03.08.2019 03:30, bradydodson47

When calcium ions are released into muscle fibers, what happens along the actin filament? multiple choice the position of the tropomyosin threads shift, hiding myosin binding sites, causing the myosin head to move farther away from the actin filament. the position of the tropomyosin threads shift, exposing myosin binding sites, allowing the myosin head to attach to the actin filament. the position of the actin filaments shift, exposing myosin binding sites, causing the myosin head to move farther away from the tropomyosin threads. the position of the actin filaments shift, hiding myosin binding sites, allowing the myosin head to attach to the tropomyosin threads.

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When calcium ions are released into muscle fibers, what happens along the actin filament? multiple...