WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    Which of the following is impermeable to water?

    A)  Vertical limb of loop of Henie

    B)  Descending limb of loop of Henie

    C)  Ascending limb of loop of Henie

    D)  Both a and b

    Correct Answer: C

    Solution :

                    Ascending limb of loop of Henie has two characteristics. (i) It actively pumps \[N{{a}^{+}}\]and \[C{{l}^{-}}\] into the surrounding tissue fluid in the medulla. (ii) It is impermeable to water, and partialy permeable to urea.


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