This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification of carbohydrate, Subject name: Biochemistry
[{'content': 'Inulin is a: \nSelect and explain. \nA. Glucosan, B. Fructosan, C. Galactosan, D. Mannosan', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glucosan (Glucan) - polymer of glucose (e.g. Cellulose) Fructosan (Fructan) - polymer of fructose (e.g. Inulin) Inulin homopolysaccharide of fructose. Source - garlic, onion neither absorbed nor secreted by renal tubules. Inulin clearance - Ideal for measuring Glomerular Filtration Rate (GFR) but it is not used widely as it has to be exogenously given to patient. Use : As a prebiotic', 'role': 'assistant'}]