This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Sulfur of cysteineare not used/ utilized in the body for the following process/product \nSelect and explain. \nA. Help in the conversion of cyanide to thiocyanate, B. Thiosulfate formation, C. Introduction of sulphur in methionine, D. Disulfide bond formation between two adjacent peptide.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Methionine is an essential amino acid, so it cannot besynthesized from Cysteine.- But Sulfur of cysteine is donated by sulfur ofmethionine.- This is called transsulfuration reaction.- PLP is the coenzyme of transrulfuration.- The reaction is catalyzed by Cystathionine betaSynthase and Cystathionase enzyme', 'role': 'assistant'}]