Host Invasion by Microorganisms Flashcards
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Host invasion
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By what three routes can pathogens enter the body? |
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Viruses
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Naked viruses contain only...? |
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Name three functions of viral structural proteins |
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Name the two main innate defences against viral infection |
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Upon viral infection, which antibody isotype is increased at mucosal surfaces? |
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What do antibodies stop free virus particles from doing? |
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By what mechanism is complement able to damage the virion envelope? |
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When coupled with antibodies, what mechanisms does complement aid in immune defence? |
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What are the main cytokines CD4+ T cells release to recruit macrophages? |
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Bacteria
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Describe three ways prokaryotic DNA differs from eukaryotic DNA |
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These surface components allow bacteria to move around |
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Bacteria with an outer layer of lipopolysaccharide are classed as... |
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Bacteria with a round shape are classed as... |
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Bacteria with a long shape are classed as... |
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What are the four rules summarising the cause and effect relationship between bacteria and infection? |
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What is the condition, characterised by excessive cytokine production, that is caused by bacterial components such as LPS? |
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By what mechanism do most bacteria replicate? |
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By what three mechanisms can bacteria transfer DNA? |
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