Determine which of the following statements represents a secondary structure for a protein. Here, creation of peptide bonds. Remember, creation of peptide bonds helps to make the sequence of amino acids and the primary structure. Attractive force between the H atom of a peptide bond and the oxygen atom of a peptide bond. Alright. So here, this makes the most sense because it's basically saying we have hydrogen bonding that is happening. This is one of the forces that helps to make the staircase and create our alpha helix. So, option B is correct. In my bond formation, the creation of an amino acid chain, this is saying the same thing as option A. We're talking about a primary structure when we're talking about peptide bonds or amide bond formation.
Ionic bond formation between the R side chains of alanine and valine. So here, this has nothing to do with secondary structure. We never talked about ionic bond formation, so this would not work. Also, we don't need to go into the discussion of what kinds of R groups these two amino acids have. Can they even undergo ionic bond interactions? That doesn't matter. We know that ionic bond formation was not one of the criteria to help make this staircase when it comes to the alpha helix and secondary structures of a protein. So here, only option B is the correct answer.
