This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Transketolase requires \nSelect and explain. \nA. FAD, B. TPP, C. PLP, D. FMN', 'role': 'user'}, {'content': "Answer: B \nExplanation: Vitamin B complexCo-enzyme formReactions used by the enzymeActivity assessmentThiamine Thiamine pyrophosphate Oxidative decarboxylation | RBC transketolase activity Riboflavin Flavin adenine dinucleotide Oxido reduction , Deamination | RBC glutathione reductase activity Niacin Nicotinamide adenine dinucleotideOxido reduction , Deamination Koenig reaction , Xanthurenic index Pantothenic acid Co enzyme A , ACP Co A derivatives , Acyl carrier proteins Pyridoxine Pyridoxal phosphate Transamination , Decarboxylation Tryptophan loading test,Xanthurenic indexBiotin Biotin Carboxylation MethylcobalamineHomocysteine methyl transferaseMethyl malonylaciduria index Folic acidFIGLU test Harper's illustrated Biochemistry ,30th ed ,page 190", 'role': 'assistant'}]