Which is true about glycogen phosphorylase in liver and muscle?
A) They are identical and activated in the same way.
B) In liver glucose is an inhibitor;glucose is not an inhibitor in muscle.
C) The liver enzyme is activated by phosphorylation,but the muscle version is activated by proteolytic cleavage.
D) Glycogen phosphorylase is found only in liver,there is none in muscle tissue.
Correct Answer:
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