Microbiology MCQs: Chapter 1

Of the following bacterial components, which one exhibits the most antigenic variation?

For microscopic identification of mycobacterium tuberculosis:

A 25-year-old man with abdominal pain with acute appendicitis. He then had a sudden rise in temperature and a sudden fall in blood pressure. Which one of the following is the most likely cause of the fever and hypotension?

Metachromatic granules are characterized feature of :

Quelling Reaction is Negative for

The main purpose of performing a throat culture is to detect the presence of which one of the following bacteria?

β-Lactamases are an important cause of antibiotic resistance. Which one of the following is the most common site where β -lactamases are located:

If the venipuncture site is inadequately disinfected,blood culture are often contaminated with:

Transposase enzymes are responsible for:

Production of exotoxin that inhibits the release of acetylcholine at the neuromuscular junction act as :

Pertussis Vaccine is a type of :

Lysozyme in tears is an effective mechanism for preventing bacterial infection. Which one of the following bacterial structures does Lysozyme degrade:

In Bacterial growth cycle, which phase has maximum metabolic activity:

A process that involves a sex pilus and the subsequent transfer of plasmids carrying genes :

Cary-Blair medium use as