Question 10
(Multiple Choice)
Adrenaline stimulates glycogen breakdown in skeletal muscle cells by ultimately activating glycogen phosphorylase, the enzyme that breaks down glycogen, as depicted in Figure 16-16. 
Figure 16-16
Which of the following statements is FALSE?
A)A constitutively active mutant form of PKA in skeletal muscle cells would lead to a decrease in the amount of unphosphorylated phosphorylase kinase.
B)A constitutively active mutant form of PKA in skeletal muscle cells would not increase the affinity of adrenaline for the adrenergic receptor.
C)A constitutively active mutant form of PKA in skeletal muscle cells would lead to an excess in the amount of glucose available.
D)A constitutively active mutant form of PKA in skeletal muscle cells would lead to an excess in the amount of glycogen available.
Answer