Question

The structure of glycine (amino acid) is $H_{2}N-C{H}_{2}CO{O}^{-}$ ($z$ witter ion). Select the correct statement:-

• A. Glycine as well as other amino acids are amphoteric
• B. The acidic functional group in amino acids is $N{H}_3$
• C. The basic functional group in amino acids is $-CO{O}^{-}$
• D. All are correct

Answer 1

The correct option is D All are correct

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 -$N{H}_2$ group to leave an ion with both a negative charge and a positive charge.

Glycine and other amino acids are Amphoteric

So all are Correct

Option D is correct