The G Protein-Mediated Cascade Stimulated by Epine­phrine Results in the Phosphorylation

Multiple Choice

The G protein-mediated cascade stimulated by epine­phrine results in the phosphorylation of two key enzymes. The eventual results of this phosphorylation are the _______ of glycogen synthase and the _______ of glycogen phosphorylase.

A) stimulation; stimulation
B) stimulation; inhibition
C) inhibition; stimulation
D) inhibition; inhibition
E) inhibition; introversion