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
[{'content': 'n humans carbohydrates are stored as: \nSelect and explain. \nA. Glucose, B. Glycogen, C. Starch, D. Cellulose', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans: b (Glycogen) Ref: Vasudevan Sreekumari, 4th p. 69; 5th ed, p. 68Glycogen is composed of glucose units joined by a- 1.4 and 1.6 linkages.Starch and cellulose are plant carbohydrates.Glucose is not the storage form of carbohydrates.Few points about the glycogen synthesis:* synthesis of glycogen granules begin with core protein 'Glycogenin'.* Rate limiting enzyme - glycogen synthase* Glycogen synthase forms a-1, 4 glycosidic bond.* Branching enzyme is glycosyl - 4: a-1,6 transferase.Glycogenolysis:* Rate limiting step - Glycogen phosphorylase.* Breaks a-1,4bond.* Debranching enzyme - Glucosyl a-1,4: a-1,4 transferase and a-1.6 glucosidase.", 'role': 'assistant'}]