Moderate
Muscle glycogen, which cannot contribute to blood glucose due to the absence of which enzymes ?
Correct answer: D. Glucose-6-phosphotase
- A. Phosphoglutamase
- B. Branching enzyme
- C. Debranching enzyme
- D. Glucose-6-phosphotase
Explanation
Muscle lacks glucose-6-phosphatase, the enzyme needed to convert glucose-6-phosphate into free glucose for release into blood. Therefore, muscle glycogen supplies energy locally but cannot directly maintain blood glucose.
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