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VMMC VMMC Medical Solved Paper-2013

  • question_answer
    Compare the statements A and B. Statement A When the urine moves through the descending limb, it becomes hypertonic and as it passes through the ascending limb of Henles loop. It becomes hypotonic. Statement B. The descending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions.

    A)  Statement A is wrong and B is correct

    B)  Statement A is correct and B is wrong,

    C)  Both Statements A and B are wrong

    D)  Both Statements A and B are correct

    Correct Answer: B

    Solution :

     The descending limb of loop of Henie is permeable to water but almost impermeable to electrolytes. This concentrates the filtrate as it moves down. The ascending limb is  impermeable to water but allows transport of electrolytes actively or passively.


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