Q. The principal nitrogenous excretory compound in humans is synthesised
A) In the liver but eliminated mostly through kidneys
B) In kidneys but eliminated mostly through liver
C) In kidneys as well as eliminated by kidneys
D) In liver and also eliminated by the same through bile
Explanation
[Solution from source] Humans are ureotelic: the liver turns ammonia into urea through the ornithine cycle, and the urea travels in blood to the kidneys to be excreted in urine. The kidneys filter urea but do not make it. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.