4 levels of protein structure

Question 1

-is the unique sequence of amino acids in a polypeptide
-is not functional

Answer 1

primary structure

Question 2

-is the folding or coiling of the polypeptide
-includes the alpha helix and the beta pleated sheet
-is not functional

Answer 2

secondary structure

Question 3

pleated sheet in secondary structure is…

Answer 3

due to H-bonds

Question 4

-is the overall 3-d shape of a polypeptide
-results from interactions between amino acids and R groups
-hydrophobic interactions-fold inward
-ionic bonds/H-bonds
-disulphide bridge-2 sulfurs bonded
-functional

Answer 4

tertiary structure

Question 5

-two or more polypeptide subunits
-functional

Answer 5

Quarternary structure