Difference between revisions of "Host Invasion by Microorganisms Flashcards"

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*'''''TNF'''''
 
*'''''TNF'''''
 
||[[Viruses - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
 
||[[Viruses - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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==<font color="purple">Bacteria</font>==
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{| border="3" cellpadding="8"
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!width="400"|'''Question'''
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!width="400"|'''Answer'''
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!width="150"|'''Article'''
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|-
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|<big>'''Describe three ways prokaryotic DNA differs from eukaryotic DNA'''
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||<font color="white"> <big>
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*'''''Few repeated sequences'''''
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*'''''Most of the DNA is transcibed'''''
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*'''''No intervening sequences within structural genes'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''These surface components allow bacteria to move around'''
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||<font color="white"> <big>
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*'''''Flagella'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''Bacteria with an outer layer of lipopolysaccharide are classed as...'''
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||<font color="white"> <big>
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*'''''Gram-negative'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''Bacteria with a round shape are classed as...'''
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||<font color="white"> <big>
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*'''''Cocci'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''Bacteria with a long shape are classed as...'''
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||<font color="white"> <big>
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*'''''Rods or bacilli'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''What are the four rules summarising the cause and effect relationship between bacteria and infection?'''
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||<font color="white"> <big>
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*'''''Koch's postulates'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
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|<big>'''What is the condition, characterised by excessive cytokine production, that is caused by bacterial components such as LPS?'''
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||<font color="white"> <big>
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*'''''Endotoxin shock'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
 +
|<big>'''By what mechanism do most bacteria replicate?'''
 +
||<font color="white"> <big>
 +
*'''''Binary fission'''''
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||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
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|-
 +
|<big>'''By what three mechanisms can bacteria transfer DNA?'''
 +
||<font color="white"> <big>
 +
*'''''Transformation'''''
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*'''''Transduction'''''
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*'''''Conjugation'''''
 +
||[[Bacteria - WikiBlood|<span title="Answer article">Link to Answer Article</span>]]
 
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Revision as of 13:58, 10 September 2008

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WIKIBLOOD FLASHCARDS



Host invasion

Question Answer Article
By what three routes can pathogens enter the body?
  • Contact
  • Aerosol
  • Orofecal
 Link to Answer Article


Viruses

Question Answer Article
Naked viruses contain only...?
  • RNA/DNA and protein coat
 Link to Answer Article
Name three functions of viral structural proteins
  • Protection of the genome
  • Attachment to host cell
  • Fusion of envelope to host cell membrane
 Link to Answer Article
Name the two main innate defences against viral infection
  • Interferon
  • Natural killer cells
 Link to Answer Article
Upon viral infection, which antibody isotype is increased at mucosal surfaces?
  • IgA
 Link to Answer Article
What do antibodies stop free virus particles from doing?
  • Binding to host cell, entering and uncoating
 Link to Answer Article
By what mechanism is complement able to damage the virion envelope?
  • Virolysis
 Link to Answer Article
When coupled with antibodies, what mechanisms does complement aid in immune defence?
  • Blocking the virus receptor
  • Lysis of infected cells
  • Opsonisation of free particles or infected cells
 Link to Answer Article
What are the main cytokines CD4+ T cells release to recruit macrophages?
  • IFN-γ
  • TNF
 Link to Answer Article

Bacteria

Question Answer Article
Describe three ways prokaryotic DNA differs from eukaryotic DNA
  • Few repeated sequences
  • Most of the DNA is transcibed
  • No intervening sequences within structural genes
 Link to Answer Article
These surface components allow bacteria to move around
  • Flagella
 Link to Answer Article
Bacteria with an outer layer of lipopolysaccharide are classed as...
  • Gram-negative
 Link to Answer Article
Bacteria with a round shape are classed as...
  • Cocci
 Link to Answer Article
Bacteria with a long shape are classed as...
  • Rods or bacilli
 Link to Answer Article
What are the four rules summarising the cause and effect relationship between bacteria and infection?
  • Koch's postulates
 Link to Answer Article
What is the condition, characterised by excessive cytokine production, that is caused by bacterial components such as LPS?
  • Endotoxin shock
 Link to Answer Article
By what mechanism do most bacteria replicate?
  • Binary fission
 Link to Answer Article
By what three mechanisms can bacteria transfer DNA?
  • Transformation
  • Transduction
  • Conjugation
 Link to Answer Article
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