Question

The average quantity of urea excreted in urine by man per
day is

• A. 1-5 gm
• B. 25-30 gm
• C. 1-1.5 litres
• D. 80 gm
• E. 100-500 mg

Answer 1

The correct option is B 25-30 gm

The correct option is B.

The composition of urine in humans is 95% water, 2.5 % urea and 2.5% other waste. As urea is the major excretory waste humans are considered ureotelic. On an average, 25-30 g of urea is excreted out per day.

So, the correct answer is '25-30 g'.