Question

Which among the following is a correct statement regarding the primary structure of proteins?

• A. Each peptide bond is wholly double bond in character
• B. Glycosidic bonds are common
• C. The hydrogen bonding is common
• D. The only kind of linkage involved is covalent

Answer 1

The correct option is D The only kind of linkage involved is covalent

Primary structure of a protein refers to the linear chain of amino acids joined together by peptide bonds. The amino acids are linked together by condensation reaction in which the carboxyl group of one amino acid reacts with amino group of another amino acid and one water molecule is removed. The bond thus formed between two amino acids is a covalent bond called as peptide bond.