This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
Skeletal muscle is deficient in 
Select and explain. 
A. Glucose -6 phosphatase, B. Hexokinase, C. Isomerase, D. Phosphofructokinase
A: Glucose -6 phosphatase
Answer: A: Glucose -6 phosphatase 
Explanation: Muscle will not release glucose into the bloodstream, because muscle tissue does not contain the glucose-6-phosphatase.Ref: DM Vasudevan, 7th edition, page no: 125