Which of the Following Statements Is False with Regard to G-Protein

Multiple Choice

Which of the following statements is false with regard to G-protein coupled receptors (GPCRs) ?

A) GPCRs can interact with specific receptor interacting proteins to modify ligand affinity.
B) Adenylate cyclase is activated.
C) Phosphodiesterase creates v cAMP molecules in response to moderate cAMP levels.
D) Protein Kinase A is activated by cAMP.
E) cAMP signals for its own degradation indirectly.