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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following enzyme is absent in muscle ?
assistant
The correct answer is  Skeletal muscle and adipose tissue cannot contribute directly to blood glucose because it does not contain glucose-6-phosphatase.The glucose -1-phosphate is conveed to glucose-6-phosphate by phosphoglucomutase. And only liver but not muscle can utilize glucose-6-phosphate to generate glucose