Urea is produced in the liver after the amino acids in proteins are broken down by the body. The urea is then eliminated from the body through the kidneys. In this excretion process, urea also facilitates water reabsorption through osmolarity changes in the kidney environment.
Commercially, urea is used in fertilizer as a source of nitrogen and in the medical field as a short-term diuretic. It is also used as a diagnostic tool for kidney function.Learn more about Biology