AP BIOLOGY

ANIMAL PHYSIOLOGY

EXCRETION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is meant by deamination?
A
removal of a carbon atom
B
removal of a nitrogen atom
C
removal of an NH2 molecule
D
removal of an amino acid
Explanation: 

Detailed explanation-1: -Deamination is the removal of an amino group from a molecule. Enzymes that catalyse this reaction are called deaminases. In the human body, deamination takes place primarily in the liver, however it can also occur in the kidney.

Detailed explanation-2: -Deamination is the removal of the amine group (NH2) from an amino acid . When a protein undergoes digestion, deamination can take place, which is the removal of an amine group from an amino acid.

Detailed explanation-3: -Deamination is the removal of an amine group from a molecule. In the human body, deamination takes place in the liver. It is the process by which amino acids are broken down. The amino group is removed from the amino acid and converted to ammonia.

Detailed explanation-4: -Deamination happens when the amine (a nitrogen containing amino group) is removed from the amino acid. This process of deamination produces ammonia. Overall, the nitrogen cycle takes nitrogen from the air and converts it to ammonia. Ammonia is then changed into nitrates which plants use for growth.

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