NEET BIOLOGY

Detailed explanation-1: -This very important metabolic process is called deamination. In the hepatocytes, NH2 (the amino group) quickly changes into ammonia NH3, which is highly toxic to the body. The liver acts fast to convert ammonia into urea that then can be excreted in the urine and eliminated from the body.

Detailed explanation-2: -Protein catabolism is the process by which proteins are broken down to their amino acids. This is also called proteolysis and can be followed by further amino acid degradation.

Detailed explanation-3: -In oxidative deamination, amino groups are removed from amino acids, resulting in the formation of corresponding keto acids and ammonia.

Detailed explanation-4: -When you eat proteins, the body breaks them down into amino acids. Ammonia is produced from leftover amino acids, and it must be removed from the body. The liver produces several chemicals (enzymes) that change ammonia into a form called urea, which the body can remove in the urine.

Detailed explanation-5: -Deamination-The transfer of an amine group from one amino acid to another and is used to synthesis nonessential amino acids; transamination-The removal of an amine group as ammonia. Most urea is excreted in urine.