Amino acids behave like salts rather than simple amines or carboxylic acids. Explain.

Explanation

In aqueous solution , the carboxyl group loses a proton and the amino group accepts a proton. In other words the carboxyl and amino groups neutralize each other to form zwitterion.
`R-underset(alpha "Amino acid")underset(NH_2)underset(|)CH-COOHhArr R-underset("Zwitterion")underset(.^+NH_(3))underset(|)(CH)-COO^(-)` .