What bond holds each amino acid together to make a protein?

PEPTIDE BOND.

Explanation:

Amino acids can link with each other through a peptide bond to form a protein or polypeptide .

this is a condensation reaction that involves the elimination of water molecule.i.e a H2O molecule is produced in this reaction.

the peptide linkage occurs when the OH group of acidic side of one amino acid reacts with the H-atom of the other amino acid and C-N link to form a bond called a PEPTIDE BOND.

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