Secondary structure of proteins refers to

Options

A. mainly denatured proteins and structure of prosthetic group
B. three dimensional structure, especially the bond between amino acid residue that are distant from each other in the polypeptide chain
C. linear sequence of amino acid residues in the polypeptide chain
D. regular folding patterns of continuous portions of the polypeptide chain

Answer

D

Explanation

Secondary structure of proteins refers to regular folding patterns of continuous portion of the polypeptide chain, as a result of hydrogen bonding between the and N-H groups