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': 'Number of isomers possible for Glucose are: \nSelect and explain. \nA. 32, B. 64, C. 16, D. 8', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Number of isomers = 2n n= number of asymmetric carbons in the linear structure of the molecule. Glucose, number of asymmetric carbons are 4 (C2, C3, C4, C5) C1 is symmetric as it is C=O. C6 is CH2OH, so symmetric. As 24 = 16, Hence, in Glucose, isomers are 16. Note: Do not use extra asymmetric carbon in cyclic structures in this formula.', 'role': 'assistant'}]