Question

1. explain how hydrogen bonding helps form the secondary structure of a protein.

(1 point) *
creating stable α - helices and β - pleated sheets.
producing the final three - dimensional shape of a protein
bonding between r - groups of amino acids
forming peptide bonds between amino acids

Explanation:

The secondary structure of a protein is formed by hydrogen bonds. In an α - helix, hydrogen bonds form between the carbonyl oxygen of one amino acid and the amide hydrogen of an amino acid four residues away. In a β - pleated sheet, hydrogen bonds form between adjacent strands (either parallel or antiparallel). These hydrogen bonds stabilize the α - helices and β - pleated sheets, which are the two main types of secondary structure in proteins.
The final three - dimensional shape of a protein (tertiary structure) is due to interactions such as hydrophobic interactions, disulfide bonds, ionic bonds etc. Bonding between R - groups of amino acids is more relevant to tertiary or quaternary structure. Peptide bonds between amino acids form the primary structure of a protein.

Answer:

Creating stable α - helices and β - pleated sheets.