What is the function of troponin in muscle contraction?

What is the function of troponin in muscle contraction?
  1. It acts as a neurotransmitter
  2. It regulates the release of calcium ions
  3. It forms cross bridges with myosin
  4. It masks the active sites for myosin

Solution

In the resting state, a subunit of troponin masks the active binding sites for myosin on actin filaments.

Asked in: NCERT

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