This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': "Von Geirke's occurs due to deficiency of ? \nSelect and explain. \nA. Glucose-6-phosphatase, B. Liver Phosphorylase, C. Muscle phosphorylase, D. Debranching enzyme", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Glucose-6-phosphataseGlucose - 6- phosphatase is deficient in Von Gierke's disease.", 'role': 'assistant'}]