BIOMOLECULES AND ENZYMES

BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the dominant form of an amino acid?
A
zwitteria
B
zwitterion
C
zwitter
D
zwaer
Explanation: 

Detailed explanation-1: -Thus, it is not surprising that an H+ ion is transferred from one end of the molecule to the other when an amino acid dissolves in water. The zwitterion is the dominant species in aqueous solutions at physiological pH (pH 7).

Detailed explanation-2: -A zwitterion is a functional group molecule in which at least one has a positive electrical charge and one a negative electrical charge. The whole molecule’s net charge is negative. The best-known examples of Zwitterions are amino acids. They have a group of amines (basic) and a group of carboxyls (acidic).

Detailed explanation-3: --amino acids exist as dipolar ions or zwitter ions.

Detailed explanation-4: -An amino acid has both a basic amine group and an acidic carboxylic acid group. There is an internal transfer of a hydrogen ion from the-COOH group to the-NH2 group to leave an ion with both a negative charge and a positive charge. This is called a zwitterion.

Detailed explanation-5: -alpha-amino acids exist as dipolar ions or zwitter ions.

There is 1 question to complete.