Question

What is meant by zwitter ionic form of amino acids?

Hint:

Amino acids exist in a zwitterionic form at physiological pH, where they have both a positive and negative charge, making them amphoteric.

Answer 1

In the zwitter ionic form, amino acids have both a positive and a negative charge within the same molecule. The amino group (-NH₂) is protonated to form -NH₃⁺, and the carboxyl group (-COOH) is deprotonated to form -COO⁻.