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Microbiology Unit 3 Exam-Viruses

  1. Virus
    Non cellular infectious agent. Media cannot be used to grow this type of agent.
  2. Host cell
    Cell that can be infected by a virus
  3. Groupe of species that share the same genome (sequential order of 3)
    Family-Genus-Species
  4. Lytic Cycle
    Process by which  new virons are produced
  5. 1st step of the lytic cycle
    Attachment
  6. Attachment-  (which is the 1st step of the lytic cycle)
    Virion binds to surface of host cell
  7. Attachment is help on by....
    Adhesins
  8. Adhesins- (which is what holds the attachment in the 1st step of the lytic cylcle)
    Protein that attaches the parasitic microbe to its host.
  9. 2nd step of the lytic cycle
    Synthesis
  10. 3rd step of the lytic cycle
    Maturation
  11. Maturation- (3rd step of the lytic cycle)
    Assembly of viral components into nucleocapsids.
  12. Synthesis (which is the 2nd stage of lytic cycle)
    Molecular components of virions are produced by the host cell.
  13. 3rd stage of the lytic cycle 
       1. Non-enveloped viruses-
       2. Enveloped viruses-
    • Release by....
    •    1. lysis of  host cell
    •    2. bydding from host cell
  14. STEPS
    • 1. Attachment
    • 2. Penetration
    • 3. Synthesis
  15. Bacteriophage Lysogeny
    Attach and penetrate, but no virions produced
  16. Latent (Long term infection)
    No production of virions 
  17. Oncogenic-
    prodices tumors
  18. Viral genome
    Template for reverse transcription of complementary DNA stand
  19. DNA stands serve as... 
    Results in..
    • Template for replication of complementary DNA strand.
    • Results in dsDNA copy of the viral genome.
  20. dsDNA-
     Which remain as...
      Results in...
    • Cope of viral genome inserts into host cell chromosome
    •   latent infection
    •    virion production
  21. Culture methods....
    Grow in Emrbyonated chicken eggs
  22. (Cyctopathic Effect) HTLV 1 and 2 results in..
    Leukemia
  23. Cytopathic Effects
    HPV
Author
Anonymous
ID
184531
Card Set
Microbiology Unit 3 Exam-Viruses
Description
Lucier @ ACC Bio275 fall2012..
Updated

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