Here's how it works:

1. Water Removal: A water molecule (H₂O) is removed from the two amino acids.

2. Peptide Bond Formation: The carbon atom of the carboxyl group (COOH) of one amino acid forms a covalent bond with the nitrogen atom of the amino group (NH₂) of the other amino acid. This bond is called a peptide bond.

The resulting molecule is called a dipeptide, and the process can continue to add more amino acids, forming a polypeptide chain.

Let me know if you'd like to learn more about the different types of bonds in proteins or the structure of amino acids!