Q.

Which of the following is not the function of proximal convoluted tubule?

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a

Reabsorption of essential nutrients

b

Secretion of ammonia

c

Reabsorption of urea

d

Secretion of hydrogen ions

answer is C.

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Detailed Solution

Reabsorption of urea is not the function of PCT. Urea reabsorption occurs from collecting ducts.

PCT reabsorbs nearly all of the essential nutrients, and 70-80 per cent of electrolytes and water.

PCT also secretes hydrogen ions, ammonia into the filtrate.

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