Adrenaline acts on which enzyme in glycogenolysis ?
Correct answer: D. Phosphorylase
- A. Glucokinase
- B. Hexokinase
- C. Glucose diphosphatase
- D. Phosphorylase
Explanation
Adrenaline stimulates glycogen phosphorylase through the cAMP-dependent phosphorylation cascade, causing glycogen breakdown. Glucokinase and hexokinase instead trap glucose for metabolism and are not glycogenolytic enzymes.
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