Epinephrine stimulates a G protein-mediated cascade within liver cells, resulting in phosphorylation of two enzymes: glycogen synthase, which is _______, and glycogen phosphorylase, which is _______.This results in _______ glucose being released to the blood and _______ glycogen being stored.
A) activated; inactivated; less; more
B) activated; inactivated; more; less
C) inactivated; activated; more; less
D) inactivated; activated; less; more
E) activated; activated; more; more

Question

Quizplus · Accepted Answer

Epinephrine stimulates glycogen breakdown and inhibits glycogen synthesis in the liver. It inactivates glycogen synthase (preventing glycogen synthesis) and activates glycogen phosphorylase (promoting glycogen breakdown), leading to more glucose being released into the blood and less glycogen being stored.

Epinephrine Stimulates a G Protein-Mediated Cascade Within Liver Cells, Resulting