5. True/False –regarding receptor proteins (RP) (10 pts)
A) RPs exhibit specificity, saturation, and competition, similarto carrier proteins.
B) RPs may be peripheral membrane proteins or may be nuclear orcytosolic proteins.
C) RPs function as the sensors in reflex pathways.
D) Activated RPs may repress rather than upregulate a gene.
E) Upregulation or downregulation of RPs occurs via receptornumber.
