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
Debranching enzyme in glycogenolysis hydrolyzes which one of the following bonds to release free glucose? 
Select and explain. 
A. a (1-4), B. a (1-6), C. p (1-4), D. 3 (1-6)
B: a (1-6)
Answer: B: a (1-6) 
Explanation: Alpha-1,6-glucosidase(debranching enzyme)can hydrolyze the glucose unit held in alpha-1,6-linkage at the branch point.Ref: DM Vasudevan, 7th edition, page no: 124