Shared Flashcard Set

Details

Chapter 15
Microbial Mechanisms of Pathogenicity
30
Microbiology
Undergraduate 1
04/03/2011

Additional Microbiology Flashcards

 


 

Cards

Term
pathogenicity
Definition
the ability of a pathogen to produce a disease
Term
virulence
Definition
the degree of pathogenicity
Term
Ld50
Definition
lethal dose for 50% of the inoculated hosts
Term
Id50
Definition
infectious dose for 50% of the inoculated hosts
Term
adhesins
Definition
surface projections on a pathogen that allow for adherence
Term
What does M protein do?
Definition
resists phagocytosis
Term
mycolic acid resists what?
Definition
digestion
Term
kinases
Definition
destroy blood clots
Term
hyaluronidase and collagenase
Definition
help spread pathogens to other parts of the body
Term
IgA protease
Definition
estroy IgA antibodies
Term
bacteria that uses M protein for attachment
Definition
Streptococcus pyogenes
Term
bacteria that uses glycocalyx for attachment
Definition
streptococcus mutans
Term
bacteria that uses fimbriae for attachment
Definition
Eschericia coli
Term
siderophores
Definition
take the host iron supply because it binds more tightly to it
Term
exotoxins
Definition
proteins produced by bacteria and releases into te surrounding medium
Term
antitoxins
Definition
antibodies against exotoxins
Term
A part of AB toxin
Definition
active part
Term
B part of AB toxin
Definition
Binding part
Term
Superantigens
Definition
cause release of cytoines, which cause fever, nausea and other symptoms
Term
endotoxins
Definition
lipopolysaccharides, the lipid A component of the cell wall of gram-negative bacteria
Term
lysogenic conversion
Definition
when the bacterial DNA is incorporated into the host cell.
Term
cytopathic effects
Definition
CPE, visible signs of viral infections
Term
coagulase
Definition
local infections can be protected in a fibrin clot case by this bacterial enzyme
Term
Corynebacterium diphtheriae
Definition
AB toxin; lysogenic conversion
Term
Streptococcus pyogenes
Definition
Membrane-disrupting erythrogenic toxin; lysogenic conversion
Term
Clostridium botulinum
Definition
AB toxin, neurotoxin; lysogenic conversion
Term
C. tetani
Definition
AB toxin, neurotoxin; no lysogenic conversion
Term
Vibrio cholerae
Definition
AB toxin, enterotoxin; lysogenic conversion
Term
Staphylococcus aureus
Definition
sutperantigen; lysogenic conversion
Term
examples of CPE
Definition
stop mitosis, cause lysosomes to release contents, granules of virus parts, infected host cells to fuse with on another, cells to grow uncontrollably
Supporting users have an ad free experience!