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The bond formed between two amino acids by the elimination of a water molecule is called a peptide linkage or bond. The peptide bond is simply another name for amide bond.

1. Carboxyl group of one amino acid
2. Amine group of other amino acid
3. Peptide bond
4. NH group in one unit is linked to carbonyl oxygen of the third unit by hydrogen bonding

Correct answer: Peptide bond

Solution

The peptide bond is formed when the carboxyl group of one amino acid reacts with the amine group of another amino acid, releasing a water molecule. This bond is also referred to as an amide bond.

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