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4.7 Viruses : The Enemy Within

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Presentation on theme: "4.7 Viruses : The Enemy Within"— Presentation transcript:

1 4.7 Viruses : The Enemy Within
By: Steffany Copeland

2 Viruses are life mimicking particles
Latin word for poison Viruses are nonliving Viruses cannot reproduce by themselves Viral genomes can be single or double stranded Viruses range from .027mm-0.03mm Obligate intracellular parasites The entire infectious virus particle as a whole- virion

3 Viruses hosts Bacteria Animals Humans Plants Fungus Insects

4 Viral Structure Nucleic acid Protein coat or capsid Envelope Tail
Tail fibers End plate

5 Lytic viral growth cycle of Bacteriophage
Adsorption Penetration Replication Assembly Release

6 Lytic replication cycle of rabies virus, an enveloped virus with a single-stranded RNA genome

7 Virions of enveloped viruses are released by budding from an infected virus

8 Rabies virus can be deadly
Rabies virus travels slowly to the CNS where it replicates and then travels to the salivary glands where it replicates again There are 2 types of rabies: Furious Rabies and Dumb Rabies

9 The End ? Questions ?


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