Biochemistry A male patient came with pain in calf muscles in exercise. On biopsy glycogen present in the muscle. What is the enzyme eficiency? A Branching enzyme B Phosphofructokinase I C Debranching enzyme D Glucose 6 phosphatase 💡 Explanation A male patient came with pain in calf muscles in exercise. On biopsy glycogen present in the muscle. What is the enzyme eficiency? ✓ Correct Answer: B. Phosphofructokinase I