about protein shape
The primary structure is the order of amino acids in the polypeptide chain.
The secondary structure is the way that hydrogen bonds make the chain coil or
The two main types of secondary structure are the
alpha helix and the beta-pleated sheet.
The tertiary structure is its overall
three-dimensional shape. It is held together by weak bonds between the side-chains of
the different amino acids.
Some proteins are fibrous e.g.
Some proteins are globular e.g.