NEET Sample Paper NEET Sample Test Paper-84

  • question_answer
    Which ion is essential for muscle contraction?

    A) \[N{{a}^{+}}\]           

    B)                    \[{{K}^{+}}\]

    C) \[C{{a}^{2+}}\]

    D) \[C{{l}^{-}}\]

    Correct Answer: C

    Solution :

    [c] Movement of \[C{{a}^{2+}}\] out in sarcoplasmic reticulum controls the making and breaking of actin and myosin complex actoinyosin due to which muscle contraction and relaxation takes place. Albert Szent Gyorgyi worked out biochemical events of muscle contraction.                    


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