Question

The Gram-positive rod that is also acid-fast and is a human pathogen is A. Corynebacterium diptheria.B. Mycobacterium tuberculosis.C. Streptococcus pyogenes.D. Listeria monocytogenes.

Answer 1

Mycobacterium tuberculosis

Step-by-step explanation:

• Mycobacterium tuberculosis is a pathogenic bacteria that is responsible for causing tuberculosis.

• It is a gram-positive bacteria that are acid-fast because of the impermeability of several dyes.

• The bacteria are nonmotile and rod-shaped which can be 2-4 micrometers in length and 0.2-0.5 um in width.

• The bacteria is an obligate anaerobe and a facultative intracellular parasite that usually infects the macrophages.