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NEET NEET SOLVED PAPER 2015 (C)

  • question_answer
    Which of the following does not favour the formation of large quantities of dilute urine?                                             

    A) Alcohol                

    B)  Caffeine                             

    C)  Renin                

    D)         Atrial-natriuretic factor

    Correct Answer: C

    Solution :

    Renin secreted by JGA regulates the glomerular filtration rate by inducing multihormonal system i.e RAAS (Renin Angiotensin-Aldosterone System). Activation of this system increases the reabsorption rate of sodium \[(N{{a}^{+}})\] and water, making the urine more concentrated. Alcohol decreases vasopressin level which lowers reabsorption of water thus making urine more dilute. ANF causes vasodilation and acts as check on RAAS.


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