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Viruses & Bacteria - Coggle Diagram
Viruses & Bacteria
Viruses
Each virus has a host range, a limited number of host species that it can infect
Types
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Retrovirus - has RNA vs. DNA (initially, more lethal) EX: HIV, Covid
Prions - infectious proteins. Ex: mad cow disease, fatal familial disease
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Characteristics
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Consists of 3 things
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Capsid - AKA protein coat, made of capsomeres
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Cycles
Lysogenic cycle - longer duration, but minimal to absent symptoms. "dormant stage"
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Lytic cycle - smaller duration, but more severe symptoms, results in the death of the host cell
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Bacteria
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reproduce rapidly
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F-factor - the fertility, F+ has sex pili, F- lacks sex pili
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Capsule
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Endo spores - dormant, inactive, genetic material to allow the bacteria to survive in harsh conditions
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Toxins
Exotoxins - proteins secreted by bacteria that can cause disease even if the bacteria are no longer present
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