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: Microbiology
[{'content': 'Which is true of Entero bacteriacae - \nSelect and explain. \nA. All are oxidase negative, B. Nitrate reduction negative, C. Glucose not femented by all, D. Motility by polar flagellum', 'role': 'user'}, {'content': "Answer: A \nExplanation: . Ans. is 'a' i.e., All are oxidase negative . Motile by peritrichate flagella (not by polar flagellum) or are non motile. . Glucose is feremented by all but some produce acid and gas, while other produce acid only. . Catalase (+) ye . Oxidase negative . Reduce nitrates to nitrite . May or may not be capsulated. . Are aerobic and facultatively anaerobic.", 'role': 'assistant'}]