Assertion :After high protein diet urine volume is reduced. Reason: Urea, sulphate and phosphate resulting from protein metabolism retain water in the tubules to keep those materials in solution.

Both assertion and reason are correct and reason is the correct explanation for assertion.

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Both assertion and reason are correct but reason is not the correct explanation for assertion.

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Assertion is correct but reason is incorrect.

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Both assertion and reason are incorrect.

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Solution

The correct option is D Both assertion and reason are incorrect.
A high protein diet results in increased urine production. Nitrogen is present in protein which is utilised by the body during formation of various amino acids. Excess nitrogen is converted into urea in the liver. This excess urea is excreted out of the body through kidneys in the form of urine. Urea, sulphate and phosphates are waste products of protein metabolism and are excreted out via kidneys along with water
Thus, the correct answer is option D.

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