BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A peptide bond is basically an amide-type of covalent chemical bond. This bond links two consecutive alpha-amino acids from C1 (carbon number one) of one alpha-amino acid and N2 (nitrogen number two) of another. This linkage is found along a peptide or protein chain.

Detailed explanation-2: -A peptide bond forms when the amino group of one amino acid bonds to the carboxyl group of another amino acid. A peptide is two or more amino acids joined together by peptide bonds, and a polypeptide is a chain of many amino acids. A protein contains one or more polypeptides.

Detailed explanation-3: -Hence, the correct answer is ‘Protein’.

Detailed explanation-4: -There are four peptide bonds present in pentapeptide. A peptide chain is used to connect two amino acids.