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15 Cards in this Set
- Front
- Back
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Viral Structure
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Smaller than Bacteria
Many Shapes- rods blocks polyhedrons |
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Viral Structure 2 basic parts
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Outer Capsid-protein subunits
Inner Core-nucleic acid |
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envelope
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extra layor of protections, allows to be airborn
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Viral spikes
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extentions of envelop for adherence
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Viral reproduction
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Highly specific for host cells
host cell membrane receptor |
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Life cycle of animal virus (6 steps)
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Attachment
Entrance Replication Biosynthesis Assembly Budding (AERBAB) |
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Lytic
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Host cell bursts and spreads
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Lysogenic
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host cells remain intact
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Latency
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Sleeping Viral genome(dormant) within host cell
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Retroviruses
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Genome is RNA
Enxyme reverse transcriptase RNA to DNA creates cDNA (copy DNA Nucleic acid is RNA |
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Colds
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Caused by Rhinoviruses
many forms |
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Flu
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caused by influenza viruses
many forms, become immune to vaccine |
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Measles
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most contagious human disease
spread by water droplets MMR vaccine |
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Herpies
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Chronic viral infection
tendancy for latentcy CHickenpox, shingles, genital herpies, cold sores |
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Antibiotics are ___ effective against____.
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NOT, VIRUSES
only fights bacteria |
