Which ion is essential for muscle contraction | vedclass

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Question

(A) Muscle contraction is initiated by the release of calcium ions $(Ca^{2+})$ from the sarcoplasmic reticulum into the sarcoplasm.These $Ca^{2+}$ ion

Vedclass · Accepted Answer

$Ca^{2+}$

Vedclass · Answer

(A) Muscle contraction is initiated by the release of calcium ions $(Ca^{2+})$ from the sarcoplasmic reticulum into the sarcoplasm.These $Ca^{2+}$ ions bind to the troponin complex on the actin filaments,which causes a conformational change that exposes the myosin-binding sites on the actin.This allows the myosin heads to bind to actin,forming cross-bridges and leading to muscle contraction via the sliding filament mechanism.

Which ion is essential for muscle contraction?

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