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What is the normal amount of urea in the blood?

(a) 10-15 mg/100 ml

(b) 18-38 mg/100 ml

(c) 40-50 mg/100 ml

(d) 0.2-0.5 mg/100 ml

I have been asked this question in exam.

This is a very interesting question from Function of Tubules-1 topic in section Excretory Products and Elimination of Biology – Class 11

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Correct choice is (b) 18-38 mg/100 ml

Explanation: The normal amount of urea present in the blood is 18-38 mg/100 ml of the blood. The increase in the amount of urea in the blood is termed as uremia.

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