Question

Which class of molecules contains the amino group, NH2

Answer 1

proteins

Hope that helped

Answer 2

Proteins

Step-by-step explanation:

Proteins are one of the biomacromolecules. Proteins are polymers of amino acids. Each amino acid has a central carbon atom to which an amino group, a carboxyl group, a hydrogen atom, and one side chain are bonded. Many amino acids are joined together by peptide bonds to make long chains of proteins.