what organelle helps with muscle contraction
There isusually one troponin per 6-8 actin molecules.Tropomyosin is a long thin protein that extends between, and binds to, the troponin molecules.When troponin is bound to actin, the tropomyosin is positioned so it prevents the myosin headsfrom contacting actin, thus preventing contraction.here isusually one troponin per 6-8 actin molecules.Tropomyosin is a long thin protein that extends between, and binds to, the troponin molecules.When troponin is bound to actin, the tropomyosin is positioned so it prevents the myosin headsfrom contacting actin, thus preventing contraction.