the series of reactions that form urea is known as the urea cycle (ornithine cylce) or the krebs-henseleit cycle. the essential features of the urea cycle reactions and their metabolic regulation are as follows: arginine from the diet or from protein breakdown is cleaved by the cytosolic enzyme arginase, generating urea and ornithine.
Parent Term
Biochemical pathway
Parent Definition
A linked series of chemical reactions that occur in a defined order within or between organism cells, and lead to a known function or end product.