Viruses Of Microorganisms! Trivia Questions Quiz

26 Questions | Total Attempts: 29

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Viruses Of Microorganisms! Trivia Questions Quiz

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Questions and Answers
  • 1. 
    Viruses are obligate _____ parasites that contain DNA or RNA & a protein coat.
  • 2. 
    These cannot replicate on their own, but they take over the metabolic machinery of a host cell.
    • A. 

      Virus

    • B. 

      Bacteria

    • C. 

      E.coli

  • 3. 
    The protein coat that covers a virus can sometimes be surrounded by an envelope.
    • A. 

      True

    • B. 

      False

  • 4. 
    The spectrum of host cells in which a virus can multiply.
    • A. 

      Host range

    • B. 

      UV rays

    • C. 

      Host

  • 5. 
    Most viruses infect a specific type of cells within a specific host, even though some can infect more than one host. This refers to
  • 6. 
    Determined by specific attachment sites on the host cell surface, and by the availability of host factors needed for viral replication. This describes the size of a virus.
    • A. 

      True

    • B. 

      False

  • 7. 
    A virus' size is generally larger than bacteria.
    • A. 

      True

    • B. 

      False

  • 8. 
    A complete fully developed viral particle composed of nucleic acid; surrounded by a protein coat (capsid); coat structure is used in classification. The term is usually used when the virus is OUTSIDE of the host cell.
  • 9. 
    May be single or double-stranded.
    • A. 

      Nucleic acid

    • B. 

      DNA

    • C. 

      RNA

  • 10. 
    Nucleic acid can be either DNA or RNA.
    • A. 

      True

    • B. 

      False

  • 11. 
    Nucleic acid can be found in what shape?
    • A. 

      Linear

    • B. 

      Circular

    • C. 

      Both

  • 12. 
    Sometimes in segments (usually RNA animal viruses); the proportion of nucleic acid to protein ranges from 1-50%; it may have a few thousand bases or up to 250,000 bases.
  • 13. 
    This is composed of subunits called capsomeres, which may be a single type of protein or several types; very distinctive shapes.
    • A. 

      DNA

    • B. 

      Nucleic Acid

    • C. 

      Capsid

  • 14. 
    Capsids may be covered by membrane of lipids,  proteins, and carbohydrates.
    • A. 

      True

    • B. 

      False

  • 15. 
    Some envelopes contain carbohydrate-protein complexes called spikes; may be used to attach to host cells.
  • 16. 
    An example of a capsid would be
    • A. 

      Virus

    • B. 

      Plasmid

    • C. 

      Influenza virus

  • 17. 
    Viruses are unable to escape action of host antibodies because of high frequency of mutation.
    • A. 

      True

    • B. 

      False

  • 18. 
    These resemble long rods.
  • 19. 
    Rabies and Ebola can be considered examples of helical viruses.
    • A. 

      True

    • B. 

      False

  • 20. 
    Capsids are not hollow cylinders.
    • A. 

      True

    • B. 

      False

  • 21. 
    Many sided; usually icosahedron (20 triangular faces with 12 corners); adenoviruses; example: herpes simplex.
    • A. 

      Helical viruses

    • B. 

      Polyhedral viruses

    • C. 

      Complex viruses

  • 22. 
    Roughly spherical, but highly pleimorphic; some enveloped helical (influenza) and polyhedral (herpes simplex)
  • 23. 
    Complex viruses have simple structures, such as bacteriophages with a helical tail.
    • A. 

      True

    • B. 

      False

  • 24. 
    The Family Herpesviridae, genus Simplex, human herpes virus 2 is the correct way to record order names
    • A. 

      True

    • B. 

      False

  • 25. 
    A group of viruses sharing the same genetic information and occupying the same ecological niche (host range); if applicable, subspecies are designated by a number.
    • A. 

      Species

    • B. 

      Subspecies

    • C. 

      Morphology

  • 26. 
    Classification is based on
    • A. 

      The type of nucleic acid

    • B. 

      Strategy for replication

    • C. 

      Morphology