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': 'Which of the following enzymes contain manganese as its cofactor? \nSelect and explain. \nA. LDH, B. Arginase, C. Hexokinase, D. DNA polymerase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Manganese: Cofactor for enzymes, e.g., arginase, pyruvate carboxylase.\nEnzymes that require a metal ion cofactor are termed metal-activated enzymes to distinguish them from the metalloenzymes for which bound metal ions serve as prosthetic groups.\nReference-Satyanarayana Pg- 405', 'role': 'assistant'}]