NEET BIOLOGY

Detailed explanation-1: -Each kidney is made of several nephrons. It separates the nitrogenous wastes from blood and excretes it in the form of urea.

Detailed explanation-2: -Nitrogenous wastes which are removed by the kidneys are urea and ammonia. Urea is the main excretory product that is filtered and excreted out from the blood by the kidneys. Ammonia is mostly converted into urea in the liver and excreted out in the urine.

Detailed explanation-3: -The organ system that excretes nitrogenous waste is the excretory system. The main organ that excretes nitrogenous waste in this system is the kidney. The kidney filters blood and removes excess water, salts, and nitrogenous waste into the filtrate.

Detailed explanation-4: -Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste.

Detailed explanation-5: -Two major nitrogenous waste products, urea and ammonium (NH(4)(+)), are produced in humans when proteins are oxidized, and in this manuscript their excretions are examined from two perspectives.