Which of the following describes the secondary structure of amino acids? (4 points) A chain sequence of amino acids

Hydrophobic interactions between side chains

Disulfide bridges between side chains

Alpha helix coil held together by hydrogen bonding

Alpha helix coil held together by hydrogen bonding

Explanation:

The primary structure of a protein is the linear chain of amino acids that form the polypeptide.

The secondary structure of a protein is the arrangements of adjacent amino acid residues in the chain. These structures are maintained by hydrogen bonds, and the major structures adopted by proteins are α-helices and β-sheets.

The tertiary structure of a protein is the 3D shape of the protein, determined by interactions between amino acid side chains

Finally, the quaternary structure refers to the fact that most proteins are made up of more than one amino acid chain. They interact with one another to form the final structure of the protein.

a time line cause it goes from 685 to 978

i am positive it is c. condensing but i may be wrong