試題詳解

74. What are the differences between polyamides and proteins ?
I)Polyamides are unable to undergo hydrogen bonding between individual polymer chains.
II) Polyamides usually do not have hydroxyl- or thiol-groups as side chains.
III) Proteins and polyamides can be partially crystalline.
IV) Polyamides have a more stable bond between their monomers than proteins have
between the individual amino acids.
(A) I and II
(B) II and III
(C) II and IV
(D) III and IV