Microbiology Trivia: Practice Test Questions! Quiz

31 Questions | Total Attempts: 48

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Microbiology Trivia: Practice Test Questions! Quiz

Do you know that the major branches of microbiology are the studies of eukaryotic and prokaryotic organisms? Eukaryotes have membrane-bound organelles contained within their cell membranes, while prokaryotic organisms are unicellular with no membrane-bound organelle. If you consider quite knowledgeable when it comes to microorganisms, these Microbiology trivia practice test questions are perfect for refreshing your memory. Do give it a shot!


Questions and Answers
  • 1. 
    Which of the following is not a virulence factor of a pathogenic microbe?
    • A. 

      Resistance to phagocytosis 

    • B. 

      Adherence to mucous membranes

    • C. 

      Induction of inflammatory response in an infected host 

    • D. 

      Possession of a capsule 

    • E. 

      Production of hyaluronidase

  • 2. 
     Adherence to mucous membranes of the host is an important virulence factor in many pathogenic bacteria. The ability to adhere may be due to: 
    • A. 

      Cell wall 

    • B. 

      Pili 

    • C. 

      Glycocalyx 

    • D. 

      B and C 

    • E. 

      All of the above

  • 3. 
     A capsule increases the virulence of certain pathogenic bacteria by: 
    • A. 

      Destroying leukocytes

    • B. 

      Inhibiting the formation of interferon 

    • C. 

      Destroying red blood cells

    • D. 

      Aiding the cell to evade phagocytosis 

    • E. 

      None of the above

  • 4. 
    The endotoxin of Gram-negative bacteria is:
    • A. 

      Protein 

    • B. 

      Only found in lysogenic strains 

    • C. 

      The lipopolysaccharide of the cell wall 

    • D. 

      The lipid of the cell membrane

    • E. 

      Bound to the ribosomes

  • 5. 
    The direct cause of the symptomstetanus is
    • A. 

      A. Collagenase 

    • B. 

      B. Toxic effet of the cells

    • C. 

      C. Hemolysin 

    • D. 

      D. Endotoxin 

    • E. 

      E. Enterotoxin

  • 6. 
    All of the following are useful in non-specific host defense against infectious disease EXCEPT: 
    • A. 

      A. Mucous membranes

    • B. 

      B. Alcoholic beverages

    • C. 

      C. Inflammation 

    • D. 

      D. Fever 

    • E. 

      E. Epithelial cells

  • 7. 
    The occurrence of an infectious dicense depends upon: 
    • A. 

      A. The virulence of the pathogen 

    • B. 

      B. The resistance of the host 

    • C. 

      C. Infection of the host by the pathogen 

    • D. 

      D. A and B above 

    • E. 

      E. All of the above

  • 8. 
    9. Each of the following enhances the pathogenicity of a microbe EXCEPT:
    • A. 

      A. Ability to grow intracellularly in phagocytic cells

    • B. 

      B. Possession of a capsule

    • C. 

      C. Ability to aiter surface composition

    • D. 

      D. Production of stomach acid 

    • E. 

      E. Exotoxin production

  • 9. 
    Exotoxins have all of the foilowing properties EXCEPT:
    • A. 

      A. They are proteins 

    • B. 

      B. They induce fever

    • C. 

      C. They act extracellularly from the microbe that produced them 

    • D. 

      D. The information for exotoxin production may reside on a prophage

    • E. 

      E. They can damage tissue at sites removed from the area of infection

  • 10. 
    Which of the following is not a host resistance factor?
    • A. 

      A. Skin 

    • B. 

      B. Inflammation 

    • C. 

      C. Interferon

    • D. 

      D. Macrophages

    • E. 

      E. Lipopolysaccharide cell wall layer

  • 11. 
     A fever is usually one host response to bacteria! invasion. This response may be due to:
    • A. 

      A. Red blood cell lysis

    • B. 

      B. Pyrogenic factors produced by the host

    • C. 

      C. The lipopolysaccharide of the bacterial cell wall 

    • D. 

      D. Loss of the normal microbial flora

    • E. 

      E. Histamine released by bacteria

  • 12. 
     Which of the following areas of the human body is usually colonized by the greatest number of bacteria 
    • A. 

      A. Large intestine

    • B. 

      B. Lung 

    • C. 

      C. Urinary tract 

    • D. 

      C. Urinary tract 

    • E. 

      E. Stomach

  • 13. 
    The kingdom composed of eukarvotic, heterotrophs with many members obtaining energy and nutrients from dead prganic matter kingdom:
    • A. 

      A. Fungi

    • B. 

      B. Eubacteria 

    • C. 

      C. Protista 

    • D. 

      D. Plantea 

  • 14. 
     A(n)...................is an organism that obtain energy from foods they consume. also called consumer
    • A. 

      A. Autotroph

    • B. 

      B. Producer 

    • C. 

      C. Heterotroph 

    • D. 

      D. Photoautotroph

  • 15. 
    The compiex carbohydrate that makes up the cell walls of fungi is............................................. (this substance is also found in the exoskeleton of arthropods).
    • A. 

      A. Peptidoglycan 

    • B. 

      B. Cellulose

    • C. 

      C. Ribose

    • D. 

      D. Chitin

  • 16. 
     The tiny filaments that make up a multicellular fungus or a water mold are called: 
    • A. 

      A. Chitins 

    • B. 

      B. Mycelia

    • C. 

      C. Hypha 

    • D. 

      D. Rhizoids

  • 17. 
    Many hyphae tangled together into a thick mass that comprises the bodies of multicellular fungi is known as a :
    • A. 

      A. Stolon

    • B. 

      B. Rhizoid 

    • C. 

      C. Mycelium

    • D. 

      D. Condium 

  • 18. 
    A.................................. is a reproductive structure of fungus that develops from a mycelium 
    • A. 

      A. Lichen

    • B. 

      B. Mycorrhiza 

    • C. 

      C. Fruiting body 

    • D. 

      D. Saprobe

  • 19. 
    The gamete-forming structure produced when the hyphae of opposing mating types of fungi meet is known as a (n): 
    • A. 

      A. Basidium 

    • B. 

      B. Gametangia

    • C. 

      C. Sporangium

    • D. 

      D. Ascus

  • 20. 
    The club fungi or................... gets its name from a specialized reproductive structure that resembles a club.
    • A. 

      A. Zygomycetes

    • B. 

      B. Ascomycetes

    • C. 

      C. Basidiomycetes 

    • D. 

      d. Deuteromycetes

  • 21. 
     A(n)................is a spore-bearing structure of basidiomycetes.
    • A. 

      A. Basidium

    • B. 

      B. Gametangium 

    • C. 

      C. Sporangium 

    • D. 

      D. Ascus

  • 22. 
     An organism that obtains food from decaving organic matter is a:
    • A. 

      A. Condium 

    • B. 

      B. mycorrhiza

    • C. 

      C. fruiting body

    • D. 

      D. Saprobe

  • 23. 
    Human diseases such as..................&................. fungi. are caused by 
    • A. 

      A. Wheat rust, ringworm

    • B. 

       b. Ringworm, athletes foot

    • C. 

      C. Athletes foot, corn smut 

    • D. 

      D. Corn smut, wheat rush 

  • 24. 
    The symbiotic relationship between fungus and a photosynthetic organism is:
    • A. 

      A. Lichen

    • B. 

      B. Mycorrhiza

    • C. 

      C. Fruiting body 

    • D. 

      D. Saprobe

  • 25. 
    The symbiotic association of plant roots and fungi is known as a:
    • A. 

      A. Condium

    • B. 

      B. Mycorrhiza 

    • C. 

      C. Fruiting body

    • D. 

      D. Saprobe

  • 26. 
     Which of the following is NOT a reason for studying the actinomycetes?
    • A. 

      A. They contribute to the mineralization of organic material.

    • B. 

      B. They produce the majority of the medically useful, natural antibiotics.

    • C. 

      C. Some members are pathogenic.

    • D. 

      D. All of the above are reasons for studying actinomycetes.

  • 27. 
    Which of the following is chararteristic of the members of the suborder Micromonosporineae?
    • A. 

      A. They lack a substrate mycelium.

    • B. 

      B. Some species produce antibiotics such as gentamicin.

    • C. 

      C. Both (a) and (b) are correct.

    • D. 

      D. Neither (a) nor (b) is correct. 

  • 28. 
     Which of the following colors is frequently observed in the colonies of members of the genus Micrococcus?
    • A. 

      A. red 

    • B. 

      B. yellow

    • C. 

      C. orange

    • D. 

      D. All of the above. 

  • 29. 
    Which of the following is correct about the genus Arthrobacter? 
    • A. 

      A. They are irregular, branched rods during exponential growth.

    • B. 

      B. They are coccoid in stationary phase.

    • C. 

      C. Both (a) and (b) are correct.

    • D. 

      D. Neither (a) nor (b) is correct.

  • 30. 
    A member of which of the following genera causes diphtheria?
    • A. 

      A. Corynetacterium

    • B. 

      B. Mycobacterium 

    • C. 

      C. Propionibacterium 

    • D. 

      D. none of the above

  • 31. 
    Which of the following diseases is caused by members of the genus Mycobacterium?
    • A. 

      A. Tuberculosis

    • B. 

      B. Leprosy 

    • C. 

      C. Both (a) and (b) are correct.

    • D. 

      D. Neither (a) nor (b) is correct.