AP BIOLOGY

ANIMAL PHYSIOLOGY

EXCRETION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The breakdown of excess protein in the liver to urea is know as what process?
A
Respiration
B
Deamination
C
Protein Synthesis
D
Ureanation
Explanation: 

Detailed explanation-1: -So, the correct answer is ‘deamination’.

Detailed explanation-2: -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-3: -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-4: -Complete answer:The deamination is the process by which the amino acids are broken down if there is an excess of protein intake. The amino group is removed from the amino acid and converted to ammonia. Ammonia is toxic to the human system and the enzymes convert it to urea or to uric acid molecules in the liver.

There is 1 question to complete.