Activation of a G protein would NOT be considered signal amplification because it: a. is part of a receptor-ligand complex and diffuses to activate a single target, such as adenylyl cyclase.
b. triggers the release of intracellular ions.
c. diffuses to activate a single target, such as adenylyl cyclase.
d. is part of a receptor-ligand complex.
e. is part of a receptor-ligand complex and triggers the release of intracellular ions.