Question

Which ion is/are responsible for muscle contraction?

Answer 1

Muscle contraction:

1. The activation of tightening the muscle cells results in muscular contraction.
2. Muscle contractions are caused by calcium ions.
3. The sarcoplasmic reticulum releases calcium ions in response to the action potential,
4. It binds to troponin on the actin filaments and causes conformational changes that expose the myosin-binding sites.