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': 'True about M. tuberculosis is - \nSelect and explain. \nA. Strict aerobes, B. Gram negative, C. Thin cell wall, D. all', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Strict aerobes Morphology . M. tuberculosis is an obligate aerobe. . M. tuberculosis is a straight or slightly curved rod. . Electron micrograph of thin section show that thick cell wall is composed of three layers enclosing a trilaminar plasma membrane. . M. tuberculosis is Gram positive.", 'role': 'assistant'}]