Final answer:
When two amino acids are combined by a dehydration synthesis reaction, it forms a peptide bond. A peptide bond is a covalent bond that connects the carboxyl group of one amino acid to the amino group of another amino acid.
Step-by-step explanation:
When two amino acids are combined by a dehydration synthesis reaction, the resulting molecule is called a peptide bond. A peptide bond is a covalent bond between two amino acids that forms by dehydration synthesis. It is a type of chemical bond that connects the carboxyl group of one amino acid to the amino group of another amino acid. This reaction releases a water molecule as a byproduct.