NEET Sample Paper NEET Sample Test Paper-55

  • question_answer
    These processes occur during repolarization of nerve fibre-
    (i) Open \[N{{a}^{+}}\] channel
    (ii) Close \[N{{a}^{+}}\] channel
    (iii) Close \[{{K}^{+}}\] channel
    (iv) Open \[{{K}^{+}}\] channel

    A) (ii) and (iv)                    

    B) (i) and (iii)

    C) (ii) and (iii)                    

    D) (i) and (ii)

    Correct Answer: A

    Solution :

    When nerve become start for repolarization \[N{{a}^{+}}-\] v.g.ch. close and \[{{K}^{+}}-\] v.g.ch open


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