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NEET Biology Excretory Products and their Elimination Question Bank Self Evaluation Test - Excretory Products and their Elimination

  • question_answer
    Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.
                 
    Cells of which part is lined by simple cuboidal brush border epithelium that increases the surface area for reabsorption? Identify the name also.

    A) 3-Descending limb of loop of HenIe

    B) 5-Vasa recta

    C) 6-Proximal convoluted tubule

    D) 7-Collecting duct

    Correct Answer: C

    Solution :

    [c] Part marked as 6 is proximal convoluted tubule (PCT). PCT is the convoluted portion of the vertebrate nephron that lies between Bowman's capsule and the loop of Henle. Cells of PCT are lined by simple cuboidal brush border epithelium that increases the surface area for reabsorption. The cells lining the PCT, absorb organic nutrients, plasma proteins & ions from the tubular fluid & release them into the interstitial fluid surrounding the renal tubule where this reabsorbed fluid enters the peritubular capillaries.


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