Question

What prevents actin and myosin from initiating contraction ?

Answer 1

Answer:

Tropomyosin

Explanation:

At full contraction, the thin and thick filaments overlap. Tropomyosin is a protein that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin.

Answer 2

Answer:

tropomyosin

The function of tropomyosin is to prevent actin and myosin from interacting Lastly, troponin C binds calcium to initiate muscle contraction.

Explanation:

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