BIOMOLECULES AND ENZYMES

Detailed explanation-1: -In aqueous solution, the carboxyl group can lose proton and amino group can accept proton, giving rise to a dipolar ion known as zwitter ion. In zwitter ionic form, amino acids show amphoteric behaviour as they react both with acids and bases.

Detailed explanation-2: -Amino acids have amino (−NH2) group, basic in nature and accepts a proton and COOH group loses a proton forming a dipolar ion, called the Zwitter ion. In this form, amino acids behave both as acids and bases so they are amphoteric in nature.

Detailed explanation-3: -Zwitterions can form from other molecules called ampholytes, or amphoteric compounds and can act as both an acid and a base.

Detailed explanation-4: -Amino acids are amphoteric compounds, as they contain both acidic (COOH) and basic (NH2) groups. They can react with both alkalies and acids to form salts.

Detailed explanation-5: -The zwitterion interacts with water molecules-acting as both an acid and a base. As an acid: The-NH3+ group is a weak acid and donates a hydrogen ion to a water molecule. Because it is only a weak acid, the position of equilibrium will lie to the left.