This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
In which of the following tissues, is glycogen incapable of contributing directly to blood glucose: 
Select and explain. 
A. Liver, B. Muscle, C. Both, D. None
B: Muscle
Answer: B: Muscle 
Explanation: Ans. B. Muscle(Ref: Harper 29/e page 180, Harper 31/e page 164)Differences between liver Glycogen and Muscle GlycogenFeaturesLiverMuscleTotal Body Glycogen contentLessHighestPercentage by tissue weightHighestLessRegulation of blood glucoseContributes to blood GlucoseDoes not contribute to blood Glucose