Basics of Viruses

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Author:
ucstudent01
ID:
247103
Filename:
Basics of Viruses
Updated:
2013-11-15 18:42:10
Tags:
Virus features terminology
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Description:
Virus features and terms
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  1. Viruses are Intracellular aka:
    Require a host cell
  2. Replication is directed by
    Viral nucleic acid
  3. They lack _______ that is necesarry for energy prodcution?
    Enzymes
  4. Viruses depend on the host cell for waht
    Protein and nucleic acid production
  5. What type of layer do enveloped viruses have?
    Lipids & polysaccharides
  6. Definition:

    Capsid
    Protein shell surrounds DNA or RNA
  7. Definition:

    Nucleocapsid
    Nucleic acid + capsid
  8. Definition:

    Capsomeres
    Structural units of capsid
  9. Definition:

    Virion
    Completed virus particle
  10. What is a prion
    Proteinaceous infectious particle

    Structures that replicated through conversion of other host proteins.

    • SCRAPIE
    • KURU
    • CJD
    • BSE - Mad Cow Disease
  11. What are the steps in viral replication
    • Attachment
    • Penetration
    • Uncoating

    It attaches to a cell receptor (cell tropism), then it penetrates the cell membrane, followed by removing all parts of the capsid thus exposing the nucleic acid.
  12. Replication of vurus particles by what
    • Biosynthesis
    • Morphogenesis
    • Release (Lyses)

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