All proteins have a primary structure. Fibrous and globular proteins have a secondary structure: α helix or β pleated. Globular proteins also have a tertiary structure due to interactions of amino acid side chains with water. Most globular proteins, including hemoglobin also have a quaternary structure. Which of these structures is due to Hydrogen bonding between amino acid chains?

Question

Responses
A primary protein structureprimary protein structure
B tertiary protein structuretertiary protein structure
C secondary protein structuresecondary protein structure
D quaternary protein structurequaternary protein structure

Answer 1

The correct answer is C secondary protein structure.

Hydrogen bonding is a key factor in the formation of secondary structures, such as α helices and β pleated sheets, in proteins. These bonds help stabilize the specific folding patterns of the polypeptide chain.