What exactly are myosin, actin, troponin and tropomyosin chemically?
Where does ATP come from?
What happens when one has a calcium deficiency?© BrainMass Inc. brainmass.com October 10, 2019, 4:12 am ad1c9bdddf
These compounds are all proteins. Actin and myosin are found in skeletal muscle. The actin and myosin control contraction of the muscle. Troponin and tropomyosin are enzymes-all enzymes are proteins- that control the interaction of the actin and myosin filaments. In the absence of an impulse, tropomysin blocks the myosin binding sites on the actin fiber. In this stage, the muscle is relaxed. ...
This solution discusses how troponin and tropomysin effect muscle contraction and discusses the effects of a calcium deficiency on the body.