What type of interaction is directly responsible for the formation of secondary structure?
A) peptide bonds between adjacent amino acids
B) peptide bonds between nonadjacent amino acids
C) hydrogen bonds between side chains of amino acids
D) hydrogen bonds between sections of the polypeptide backbone

Question

Quizplus · Accepted Answer

The hydrogen bonds formed between sections of the polypeptide backbone, specifically between the carbonyl group of one amino acid and the amino group of another amino acid, are directly responsible for the formation of secondary structure in proteins, such as alpha helices and beta sheets. Peptide bonds between adjacent or nonadjacent amino acids are important for the overall structure of the protein, but do not directly contribute to the formation of secondary structure. Hydrogen bonds between side chains of amino acids are important for tertiary and quaternary structure, but do not play a direct role in the formation of secondary structure.

What Type of Interaction Is Directly Responsible for the Formation