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Which statement is true? Epinephrine activates glycogen phosphorylase. Epinephrine increases glycolysis in muscle. Insulin decreases glycogen...

Which statement is true?

Epinephrine activates glycogen phosphorylase.

Epinephrine increases glycolysis in muscle.

Insulin decreases glycogen breakdown by increasing phosphoprotein phosphatase-1 activity.

All of the above

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