Microbiology Exam Practice Quiz

45 Questions

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Microbiology Exam Practice Quiz

If you’ve got your microbiology exam coming up fast, then it might be a good idea to ensure your knowledge is up to the task of acquiring full marks! In the following quiz, we’ll be taking a look under the microscope and seeing just how much you truly know about the study of microorganisms. Think you know enough to get all of the questions right and ace your finals? Take the practice quiz!


Questions and Answers
  • 1. 
    Which of the following is NOT true about bacterial endospores?
    • A. 

      All bacteria can sporulate

    • B. 

      Endospores can resist bad environments

    • C. 

      Endospores germinate in favorable environments

    • D. 

      Clostridium species can form endospores

  • 2. 
    Edward Jenner is credited with which of the following?
    • A. 

      Applying germ theory to medical practices such as surgery

    • B. 

      Discovering the antibiotic properties of pcn

    • C. 

      Creating steps to link a specific bacteria to a specific disease

    • D. 

      Discovering the process of fermentation

    • E. 

      Developing the process of vaccination

  • 3. 
    Which of the following is true about the theory of spontaneous generation?
    • A. 

      States that all cells come from pre-existing cells

    • B. 

      States that life arises from non-living matter

    • C. 

      Is believed to be true today

  • 4. 
    Louis Pasteur is credited with which of the following?
    • A. 

      Applying germ theory to medical practices such as surgery

    • B. 

      Discovering the antibiotic properties of pcn

    • C. 

      Discovering the process of fermentation

    • D. 

      Creating steps to link a specific bacteria to a specific disease

  • 5. 
    Which of the following is NOT true of archae?
    • A. 

      They are prokaryotes

    • B. 

      They have peptidoglycan in their cell walls

    • C. 

      They live in extreme environments

  • 6. 
    Which is NOT true of bacteria?
    • A. 

      They are prokaryotes

    • B. 

      They have peptidoglycan in their cell walls

    • C. 

      They have a nucleus

    • D. 

      Some use photosynthesis

  • 7. 
    BLANK are multicellular, eukaryotic organisms that get their nutrition from absorption.
    • A. 

      Protists

    • B. 

      Plants

    • C. 

      Fungi

  • 8. 
    The maximum magnification using a light microscope is?
    • A. 

      10,000x

    • B. 

      1,000x

    • C. 

      100x

  • 9. 
    Which is a correct term for the domain of life?
    • A. 

      Prokaryote

    • B. 

      Fungi

    • C. 

      Archaea

    • D. 

      Animal

  • 10. 
  • 11. 
    You want to know if a bacteria has a capsule. What do you use to identify it?
    • A. 

      A flagella stain

    • B. 

      A negative stain

    • C. 

      Simple stain

  • 12. 
    If you boiled nutrient broth and sealed the flask and saw no growth...which of the following are valid conclusions?
    • A. 

      Life can not spontaneously generate

    • B. 

      Air or "vital force" may be needed for spontaneous generation

    • C. 

      That spontaneous generation is true

  • 13. 
    Who came up with the rules for attributing a certain disease to a specific microbe?
    • A. 

      Bassi

    • B. 

      Semmelwise

    • C. 

      Koch

    • D. 

      Lister

  • 14. 
    Who am I? I am a single cell and have no nucleus.
    • A. 

      Fungus

    • B. 

      Protista

    • C. 

      Bacteria

  • 15. 
    A cell is placed in a solution and the cell lyses. The solution is:
    • A. 

      Isotonic

    • B. 

      Hypotonic

    • C. 

      Hypertonic

  • 16. 
    • A. 

      Movement of particles from high concentration to low

    • B. 

      Bursting of cells due to pressure

    • C. 

      Movement of water

  • 17. 
    Which of the following does NOT damage a cell's plasma membrane specifically?
    • A. 

      Pcn

    • B. 

      Detergent

    • C. 

      Alcohol

  • 18. 
    IN bacteria, DNA is found where?
    • A. 

      In a nucleus

    • B. 

      In ribosomes

    • C. 

      In the nuclear area

  • 19. 
    • A. 

      Alcohol removes Crystal Violet from gram negative bacteria

    • B. 

      Iodine is the mordant

    • C. 

      Safranin is red

    • D. 

      Gram positive bacteria will turn pink

  • 20. 
    A peritrichous flagella means
    • A. 

      One flagella

    • B. 

      Two flagella

    • C. 

      Many flagella

  • 21. 
    • A. 

      In cell wall

    • B. 

      At base of flagella

    • C. 

      In nuclear area

  • 22. 
    What information is not found from a Gram stain process?
    • A. 

      Cell wall structure

    • B. 

      Ease of treatment with antibiotics

    • C. 

      Flagella arrangement

    • D. 

      Shape

  • 23. 
    • A. 

      A micrometer is bigger than a nanometer

    • B. 

      A nanometer is bigger than a micrometer

    • C. 

      There are 1000 micrometers in a millimeter

  • 24. 
    Which of the following is equal to .5 micrometers
    • A. 

      500nm

    • B. 

      .1mm

    • C. 

      1nm

  • 25. 
    What type of microscopy uses fluorochromes and a laser light to produce a 3D image?
    • A. 

      Phase-contrast

    • B. 

      Confocal

    • C. 

      Florescence microscopy

  • 26. 
    To magnify the surface of a specimen at 10,000x, you would use what?
    • A. 

      Electron

    • B. 

      Scanning acoustic

    • C. 

      Tunneling prove

  • 27. 
    Which stain procedure uses a mordant to accentuate the size of the structure?
    • A. 

      Endospore staining

    • B. 

      Flagella staining

    • C. 

      Acid fast staining

  • 28. 
    Which of the following is NOT a characteristic of Prokaryote cells?
    • A. 

      Histones

    • B. 

      Circular chromosome

    • C. 

      No organelles

  • 29. 
    A rod-shaped bacteria in chains would be called:
    • A. 

      Sterptococci

    • B. 

      Diplocacilli

    • C. 

      Streptobacilli

  • 30. 
    Which would be chains of round cells?
    • A. 

      Streptococcus

    • B. 

      Staphylococcus

    • C. 

      Bacillus

  • 31. 
    Which describes a bacteria with 1 flagella on each end?
    • A. 

      Monotrichous

    • B. 

      Amphitrichous

    • C. 

      Lophotrichous

  • 32. 
    A bacteria cell in a hypertonic solution will...
    • A. 

      Shrivel

    • B. 

      Burst

    • C. 

      Be the most healthy

  • 33. 
    Detergents and alcohols act by damaging which part of the bacterial cell?
    • A. 

      Cell wall

    • B. 

      Plasma membrane

    • C. 

      Nucleoid region

  • 34. 
    Bleach kills bacteria by damaging...
    • A. 

      Cell wall

    • B. 

      Plasma membrane

    • C. 

      Ribosomes

  • 35. 
    • A. 

      It doesn't allow those microbes to stick together

    • B. 

      It kills those cells by osmotic pressure

    • C. 

      It doesn't help

  • 36. 
    What is the first step of the gram stain?
  • 37. 
    What is the second step of the gram stain?
  • 38. 
    What is the third step of the gram stain?
  • 39. 
    Fourth step of gram stain:
  • 40. 
    Prokaryotes can divide by binary fission.
    • A. 

      True

    • B. 

      False

  • 41. 
    Eukaryotes have once circular arranged chromosome.
    • A. 

      True

    • B. 

      False

  • 42. 
    Prokaryotes lack membrane enclosed organelles.
    • A. 

      True

    • B. 

      False

  • 43. 
    Eukaryotes sometimes lack cell walls.
    • A. 

      True

    • B. 

      False

  • 44. 
    Prokaryotes' cells' DNA is found in multiple chromosomes and has histones.
    • A. 

      True

    • B. 

      False

  • 45. 
    What are 6 structures of a bacterial cell?