Question 1
Each amino acid differs from others in the
◦ number of peptide bonds in the molecule.
◦ number of central carbon atoms.
◦ chemical structure of the R group.
◦ size of the amino group.
◦ number of carboxyl groups.
Question 2
The alpha-helix and B-sheets are examples of the ________ structure of a protein.
◦ primary
◦ secondary
◦ tertiary
◦ quaternary
◦ pentanary