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

Amino acids in their zwitterionic state possess both a positive and a negative charge within a single molecule. Specifically, the amino group (-NH₂) becomes protonated to -NH₃⁺, while the carboxyl group (-COOH) undergoes deprotonation to form -COO⁻.