Microbiology worksheet with answers

Free printable Microbiology worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy

Which disease has been eradicated worldwide through vaccination?

  1. AMalaria
  2. BTuberculosis
  3. CSmallpox
  4. DMeasles
2.Easy

Why are viruses called obligate intracellular parasites?

  1. AThey only live inside the intestine
  2. BThey can only replicate inside a living host cell
  3. CThey always kill the host cell immediately
  4. DThey can only be seen inside a cell under a microscope
3.Easy

Which structure do bacteria have but human cells do not?

  1. AA peptidoglycan cell wall
  2. BDNA
  3. CRibosomes
  4. DA phospholipid cell membrane
4.Medium

In which phase of the bacterial growth curve do the cells divide at their fastest constant rate?

  1. AStationary (plateau) phase
  2. BLag (adaptation) phase
  3. CLog (exponential) phase
  4. DDeath phase
5.Medium

Which virus family includes the viruses that cause cold sores and chickenpox?

  1. ACoronaviruses
  2. BRetroviruses
  3. CHerpesviruses
  4. DPicornaviruses
6.Medium

Which type of immunity is given by breast milk antibodies?

  1. AArtificial active immunity
  2. BNatural active immunity
  3. CArtificial passive immunity
  4. DNatural passive immunity
7.Hard

A teenager has fever, neck stiffness and a non-blanching purple rash. CSF shows Gram-negative diplococci. Which organism is most likely?

  1. AStreptococcus pneumoniae
  2. BNeisseria meningitidis
  3. CEscherichia coli
  4. DListeria monocytogenes
8.Hard

A deep, dirty wound becomes swollen and very painful, and gas can be felt under the skin. Which organism is most likely?

  1. AClostridium perfringens
  2. BStreptococcus pneumoniae
  3. CNeisseria gonorrhoeae
  4. DBordetella pertussis

Answer key

  1. 1. C · Smallpox
  2. 2. B · They can only replicate inside a living host cell
  3. 3. A · A peptidoglycan cell wall
  4. 4. C · Log (exponential) phase
  5. 5. C · Herpesviruses
  6. 6. D · Natural passive immunity
  7. 7. B · Neisseria meningitidis
  8. 8. A · Clostridium perfringens

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