True about M. tuberculosis is -: (A) Strict aerobes, (B) Gram negative, (C) Thin cell wall, (D) all
Answer is A. 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.