Question

Lung tuberculosis is caused by_______________.

• A. Pseudomonas aeruginosa
• B. Mycobacterium tuberculosis
• C. Streptococcus pneumoniae
• D. Escherichia coli

Answer 1

Answer: (B)

Mycobacterium tuberculosis

Lung tuberculosis or pulmonary tuberculosis is caused by Mycobacterium tuberculosis. They are slow-growing bacteria generally found in areas with a rich supply of blood and oxygen.

Psuedomonas aeruginosa causes infections of the respiratory tract, urinary tract, bone and joints and particularly of those who are immunocompromised.

Streptococcus pneumoniae is a major causative of pneumonia and meningitis in children.

Escherichia coli is commonly found in gut flora and is usually harmless. However, some strains can cause diarrhea and dysentery.

So, the correct answer is option B.