AIIMS AIIMS Solved Paper-2007

  • question_answer

    Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as

    Assertion: The imbalance in concentration of \[N{{a}^{+}},\,{{K}^{+}}\] and proteins generates resting potential Reason: To maintain the unequal distribution of \[N{{a}^{+}}\] and \[{{K}^{+}}\], the neurons use electrical energy.

    A) If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.

    B) If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.

    C) If Assertion is true, but Reason is false.

    D) If both Assertion and Reason are false.

    Correct Answer: C

    Solution :

    To maintain the unequal distribution of \[N{{a}^{+}}\] and \[{{K}^{+}}\] ion, the nerves uses chemical energy in form of ATP to actively transport Na+ ion out of cell and more K+ inside the cell.


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