W1L2: Protein Structure & Function II

Question 1

Primary Protein Structure

Answer 1

amino acid sequence

Question 2

Secondary Protein Structure

Answer 2

local structure, stabilized by H bonds; alpha helices and beta pleated sheets

Question 3

Tertiary Protein Structure

Answer 3

folded structure of entire polypeptide chain; stabilized by disulfide bonds

Question 4

Quaternary

Answer 4

arrangement of multiple subunits into a larger complex; multiple polypeptides together

Question 5

Van der Waals

Answer 5

weak chemical interaction between non polar molecules;

Question 6

Pi Stacking

Answer 6

weak chemical interaction between aromatic molecules

Question 7

Hydrogen Bonds

Answer 7

weak chemical interactions in proteins and nucleic acids, polar molecules

Question 8

Hydrophobic Effect

Answer 8

tendency of non-polar molecules to exclude water

Question 9

Homodimer/Homotrimer

Answer 9

two copies of the same protein bound together; three copies of the same protein

Question 10

Heterodimer

Answer 10

two different kinds of proteins bound together