Answer:
Polypeptides
Protein
Chains of amino acids make Polypeptides which can join together to make a Protein.
Amino acids comprises of an amino group, acidic carboxyl group, and organic side chain. This unique structure is what differentiates it from other compounds.
A combination of two or more amino acids form a polypeptide with the help of the peptide bonds. A combination of two or more polypeptides however form Protein.
Protein or polypeptides are formed by the amino group of an amino acid getting attached to the carboxyl group of another amino acid with the help of the peptide bonds.
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