Question

A tripeptide has _________

(a) 3 amino acids and 1 peptide bond

(b) 3 amino acids and 2 peptide bonds

(c) 3 amino acids and 3 peptide bonds

(d) 3 amino acids and 4 peptide bonds

This question was addressed to me in final exam.

My question comes from Peptides and Proteins in portion Amino Acids, Peptides and Proteins of Biochemistry

Answer 1

The correct option is (b) 3 amino acids and 2 peptide bonds

The explanation is: Monopeptide is a peptide containing single amino acid, dipeptide contains two amino acids joined by one peptide bond and tripeptide contains three amino acids joined by two peptide bonds.