2007-03-28 18:08:16 · 6 answers · asked by boot 2 in Science & Mathematics ➔ Biology
a series of metabolic reactions, occurring in the liver, by which ammonia is converted to urea using cyclically regenerated ornithine as a carrier.(OR)
excess nitrogen in the form of ammonia is converted to soluble urea, using L-ornithine as a recyclable carrier.
the ammonia is formed from various metabolic pathways of aminoacid metabolism
2007-03-28 20:35:08 · answer #1 · answered by kala b 2 · 1⤊ 0⤋
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UREA is the end product of Protein Metabolism in the body. When you eat a proteinaceous meal, such as steak, it is broken down into individual amino acids by hydrolysis of the peptide bonds. The Amino acids are absorbed by the villus in the small intestine and transferred into the blood. In the blood, these proteins go to the liver where they are metabolized by deamination and decarboxylation, eventually reaching the Urea cycle, and the unabsorbable residues from proteins will be filtered by the kidneys and excreted with the urine.
2016-04-07 07:58:32 · answer #2 · answered by ? 4 · 0⤊ 0⤋
urea is the breakdown product of proteins in the body. proteins are first broken down into ammonia and as ammonia is highly toxic to the cells it is further converted to urea in the liver hepatocytes and then excreted in the urine by the kidney,
2007-03-28 23:29:12 · answer #3 · answered by rara avis 4 · 0⤊ 0⤋
Urea is a brekdown product of amino acids in the body. Uric Acid is a breakdown product of nucleic acids.
2007-03-28 18:53:34 · answer #4 · answered by misoma5 7 · 0⤊ 0⤋
proteins are broken down to urea
2007-03-28 20:37:50 · answer #5 · answered by ~*tigger*~ ** 7 · 0⤊ 0⤋
Protein waste and excess protein in the diet.
2007-03-28 18:11:06 · answer #6 · answered by bravozulu 7 · 0⤊ 0⤋