Study sets, textbooks, questions
Upgrade to remove ads
Microbiology Test 4/final
Terms in this set (141)
ability of a pathogen to produce a disease by overcoming the defenses of the host
degree of pathogenicity
to be successful a pathogen must be able to do most or all of the?
leave reservoir and enter host
adhere to surface of host
penetration or evasion of host defenses
damage to host cells
exit host and return to reservoir
portal of entry
The specific route by which a particular pathogen gains access to the body
what mucous membranes do microorganisms penetrate?
membranes of the conjuctiva and the respiratory, gastrointestinal, and the genitourinary tracts.
most microorganisms enter hair follicles and sweat ducts
parenteral route of penetration
gain access to tissues by inoculation through the skin and mucous membranes in bites, injections, and other wounds
do highly virulent pathogens have a higher or lower value of ID50 and LD50 than other pathogens?
lower values for both
what pathogens are to cross the placenta?
surface projections on a pathogen - they adhere to complementary receptors on the host cell.
can be glycoproteins or lipoproteins. associated with fimbriae
prevent pathogens from being phagocytized.
proteins in cell wall?
facilitate adherence or prevent pathogen from being phagocytized. waxy lipid resists digestion.
ex: M protein , Opa
enzyme that causes a fibrin clot which protects local infections
how can bacteria spread from a focal infection?
kinases, hyaluronidase, and collagenase
destroy blood clots
Other sets by this creator
Organic Chemistry 2 Group Questions
Microbiology Lab practical #2/ Final
Microbiology Lab Quiz 5