Question

Which one is both osmoregulator as well as nitrogenous product?

• A. $N{H}_3$
• B. Urea
• C. Uric acid
• D. All of the above

Answer 1

The correct option is B Urea

Urea is both osmoregulator as well as nitrogenous waste. Urea is produced in the liver and excreted through urine. The urea helps in osmoregulation by participating in counter current system, small amounts of urea enter the thin segment of the ascending limb of Henle’s loop which is transported back to the interstitium by the collecting tubule.

So, the correct answer is 'Urea'.