Mycobacterium tuberculosis is one of the few species of bacteria that
A)are encapsulated.
B)stain Gram-negative.
C)are acid fast.
D)stain Gram-positive.

Question

Quizplus · Accepted Answer

Mycobacterium tuberculosis is acid-fast, meaning it retains its stain even after being treated with acid-alcohol. This is due to the presence of a waxy layer in its cell wall, which makes it resistant to most stains and dyes used in typical staining methods. Mycobacterium tuberculosis is not encapsulated, does not stain Gram-negative, and does not stain Gram-positive.

Mycobacterium Tuberculosis Is One of the Few Species of Bacteria