This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
[{'content': 'Pyridoxine in required as co-factor in all, except \nSelect and explain. \nA. Transamination, B. Transketolation, C. Glycogen phosphonylase, D. Decarboxylation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: PLP is closely associated with the metabolism of amino acids. Pyridoxal phosphate paicipates in reactions like transamination, decarboxylation, deamination, transsulfuration, condensation etc. Transketolase: The second group of enzymes that use TPP as co-enzyme are the transketolases, in the hexose monophosphate shunt pathway of glucose. This reaction is possible with TPP Ref: Satyanarayana 4th ed page 377', 'role': 'assistant'}]