<prompt> True about M. tuberculosis is -Strict aerobesGram negativeThin cell wallall  <response>: 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. 