In glycogenolysis, adrenaline acts on
Glucokinase
Hexokinase
Phosphorylase
None of the above
Regulation of glycogen degradation by cAMP: The hormones like epinephrine and glucagon bring about glycogenolysis by their action on glycogen phosphorylase through cAMP. Glycogen phosphorylase exists in two forms, an active 'a' form and inactive form'b'.