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    muscle function and calcium deficiency

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    What exactly are myosin, actin, troponin and tropomyosin chemically?

    What molecule releases energy when its bonds are broken. Which bonds are broken to release that energy?

    Where does ATP come from?

    What happens when one has a calcium deficiency?

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    Solution Preview

    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. ...

    Solution Summary

    This solution discusses how troponin and tropomysin effect muscle contraction and discusses the effects of a calcium deficiency on the body.