AMINO GROUP

"The amino group of an amino acid consists of a nitrogen atom bonded to two hydrogen atoms."

"Proteins are composed of amino acids that are linked together by peptide bonds, which involve the amino group of one amino acid bonding with the carboxyl group of another."

"The presence of an amino group in a molecule often allows it to act as a base and accept a proton."

"The structure of an amino acid includes an amino group, a carboxyl group, and a side chain."

"Amines are organic compounds that contain an amino group as their functional group."