Top Microbiology Quizzes & Trivia

It's small, it's tiny, it may bug, bite, amaze or even kill you! Is it a worm, is it a germ, is it a small life-form? Yes! This is microbiology ladies and gents. Do you know about microbiology? Are you a young Robert Hooke? Or an inventor like Anthon Van Leeuwenhoek? If you are, then these quizzes are for you! With everything from archaebacteria to the zoa in protozoa, there's something (even if very small) for every microbiologist out there!

Do you know your DNA from your RNA? Your algae from your amoebas? Can you answer questions like "How do bacterium propogate?", "What is the toughest life-form on this planet?" and "Who invented the microscope?" then what are you waiting for? Dive right in...or are you scared of catching something?

Microbiology Questions and Answers

All of the following organisms cause Nosocomial infections except:

Acinetobacter

E. aerogenes

Klebsiella pneumoniae

Pseudomonas

Shigella

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Which organism is responsible for Rocky Mountain Spotted Fever?

Clostridium perfringens

Rickettsia rickettsii

Borrelia burgdorferi

Treponema pallidum

Bartonella henslae

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Which of the following bacteria can be transmitted by way of the intestinal tract?

Salmonella

E. coli

Yersinia entercolitica

Citrobacter

All of the above

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Which of the following is not true about spikes?

they are used for absorption

they are used for penetration

they may cause haemagglutination

they are only found on enveloped viruses

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The ability of a virus to infect an organism is regulated by

the host species

the type of cells

the availability of an attachment site

cell factors necessary for replication

all of the above

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Which of the following statements is not true?

viruses contain DNA or RNA

the nucleic acid of a virus is surrounded by a protein coat

viruses multiply inside living cells using viral mRNA, tRNA and ribosomes

viruses cause the synthesis of specialised infectious elements

viruses multiply inside living cells

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Which of the following is not true regarding viruses?

May be DNA, RNA, Single, or Double-stranded

All are obligate intracellular parasites

All have a protein capsid and envelope

Release virions during cell lysis or budding

All are true

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What type of immunity is most responsible for fighting viral infections?

Humoral Immunity

Cell-Mediated Immunity

Innate Immunity

All

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How are viruses different from bacteria?

Viruses do not replicate by binary fission

Viruses are smaller

Viruses are obligate intracellularly

A and B

All

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With reference to Bacteroides fragilis the following statements are true except-

B. fragilis is the most frequent anaerobe isolated from clinical samples.

B. fragilis is not uniformly sensitive to metronidazole

The lipopolysaccharide formed by B. fragilis is structurally and functionally different from the conventional endotoxin

Shock and disseminated intravascular coagulation are common in Bacteriodes bacteremia

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A child had pustular lesion on leg. On gram staining gram positive cocci are seen. To establish the diagnosis of Group A streptococcal erythroderma, the test used is

Bile solubility test

Catalase test

Optochin sensitivity

Bacitracin sensitivity

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Cholera toxin:

Increases the levels of intracellular cylic GMP

Acts through the opoid receptors

Causes continued activation of adenylate cyclase

lnhibits the enzyme phosphodiesterase

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