Question

Name the amio acid that get regenerate during urea synthesis

Answer 1

A molecule of ornithine combines with one molecule of ammonia and one of CO2 to form citrulline. A second amino group is added to citrulline to form arginine, which is then hydrolyzed to yield urea, with regeneration of ornithine. Ureotelic animals have large amounts of the enzyme arginase in the liver.