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Ch.20.1- Viruses

Quiz by Kate Downey

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63 questions
Show answers
  • Q1
    Which of the following could NOT be used to grow viruses in the laboratory?
    bacteria
    plant
    chicken egg
    rock
    60s
  • Q2
    Which of these is the best description of a virus?
    organisms made of RNA or DNA protected by protein
    a cell at the boundary between living and nonliving things
    a noncellular living organism
    a member of the kingdom Virusae
    60s
  • Q3
    The innermost portion of a virus's structure is made up of
    a protein capsid.
    either DNA or RNA.
    a membranous envelope.
    both DNA and RNA.
    60s
  • Q4
    If a virus is termed “dormant”, this means it
    is easy to develop immunity against it.
    has not entered a lytic cycle.
    has not entered a lysogenic cycle.
    cannot be a retrovirus.
    60s
  • Q5
    Some, but not all, viruses contain ______, located on their outer or inner surface.
    either DNA or RNA
    a protein capsid
    both DNA and RNA
    a membranous envelope
    60s
  • Q6
    In order to infect a cell, a virus must
    actively burrow through the cell wall or cell membrane of the host cell to reach the cell's nucleus.
    have a special protein on its surface that can interact with a protein on the surface of the host cell.
    dissolve its own capsid in order to release its nucleic acid.
    produce a special extension of its cytoplasm when it comes into contact with the appropriate host cell.
    60s
  • Q7
    The viral infection cycle that will cause the viral DNA to become integrated into the bacterial DNA is called the _______ cycle.
    lytic
    lysogenic
    lysol
    lysosome
    60s
  • Q8
    Which of the following is not true of viruses?
    they are obligate intracellular parasites
    a specific virus will only infect a specific species (cell type)
    All of the choices characterize viruses.
    they require a host cell to replicate
    60s
  • Q9
    Which of the following characterize prions?
    they cause Cruetzfeld-Jakob disease
    they can cause normal protein to change shape
    All of the choices are correct
    prions are simply misfolded protein molecules
    60s
  • Q10
    Letters “a”, “b”, “e”, “f”, and “g” represent
    Question Image
    the lytic cycle
    the lysogenic cycle
    transformation
    60s
  • Q11
    Which part of the diagram is representing the assembly stage?
    Question Image
    b
    f
    d
    e
    60s
  • Q12
    The letter “d” represents a
    Question Image
    prophage
    capsid
    bacteriophage
    viral envelop
    60s
  • Q13
    Which of the following are characteristics of a virus?
    None of the above.
    Reproduction
    Growth

    Have a metabolism (aka use and obtain energy) 

    60s
  • Q14
    What nucleic acid is found in viruses?
    DNA or RNA
    DNA & RNA
    only RNA
    only DNA
    60s
  • Q15
    What is a capsid?
    the study of biological fluids
    nucleic material encased in a protein coat
    growth of cells living in a controlled environment
    the requirement of a medium to reproduce
    60s

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