Question

What maintains the secondary structure of a protein?

a) hydrophobic interactions
b) hydrogen bonds between the R groups
c) peptide bonds
d) disulfide bonds
e) hydrogen bonds between the amino group of one peptide bond and the carboxyl group of another peptide bond

Answer 1

Secondary structure refers to regular, recurring arrangements in space of adjacent amino acid residues in a polypeptide chain. It is maintained by hydrogen bonds between amide hydrogens and carbonyl oxygens of the peptide backbone.