Question

Deamination is a process in which

• A. Poisonous urea is removed from the blood and it occurs in kidney
• B. Amino acid is absorbed from the digested food and it occurs in intestinal villi
• C. Amino acid combines with ammonia to from protein
• D. Amino acids are broken down to release CO${}_2$ and NH${}_2$

Answer 1

Answer: (D)

Amino acids are broken down to release CO${}_2$ and NH${}_2$

Deamination is the process by which 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 enzymes convert it to urea or uric acid molecules in the liver.

So, the correct answer is option D.