Hydrogen Bonds are Most Important in This Type of Structure

Question

Hydrogen bonds are most important in this type of structure in proteins:
A) primary structure
B) secondary structure
C) tertiary structure
D) quaternary structure
E) All of these

Accepted Answer

Hydrogen bonds play a crucial role in stabilizing the secondary structure of proteins, particularly in alpha helices and beta sheets. Primary structure is held together by peptide bonds, tertiary structure is stabilized by a combination of non-covalent interactions including hydrogen bonds, and quaternary structure is the arrangement of multiple polypeptide chains in a protein and also involves a variety of non-covalent interactions including hydrogen bonds. However, the importance of hydrogen bonds is most significant in the secondary structure.