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': 'Cellulose is not broken due to beta anomerism at: \nSelect and explain. \nA. C1, B. C2, C. C5, D. C6', 'role': 'user'}, {'content': "Answer: A \nExplanation: Anomerism Different -H and -OH orientation around the functional carbon. C1 is the functional carbon in glucose. Two types of Anomers are - Alpha (a) - at functional carbon, -OH is downwards Beta (b)- at functional carbon, -OH is upwards b-anomers can't be broken in body. Cellulose is made up of glucose joined by b 1-,4 glycosidic bond In glucose functional carbon is at C1 (Aldehyde). So, Cellulose is not broken due to b-anomerism at C1", 'role': 'assistant'}]