1. Carrier proteins, but not channel proteins:
a. undergo a significant conformational change with eachtransport event.
b. require the binding of an external ligand to become activein membrane transport.
c. are not particularly selective in the solutes theytransport.
d. can be used as mediators of active transport.
e. two of the above.
2. Peripheral membrane proteins:
a. can interact with the fatty acid chains within the lipidbilayer.
b. would not be digested by trypsin in a permeabilizedcell.
c. can be bound to the membrane by interactions with thelipid polar head groups.
d. would contain at least one a-helical membrane-spanningdomain.
e. all of the above.