Which disease-associated fungi or fungal characteristics are
mismatched?
A.) Cryptococcus neoformans - capsules
B.)
Amantia - neurotoxin
C.) trichothecenes - inhibit protein
synthesis
D.) Claviceps purpura - aflatoxin
E.) ergot - sclerotia
D
25) Twenty-five people developed symptoms of nausea, vomiting, and diarrhea three to six hours after attending a church picnic where they ate a ham and green bean casserole with cream sauce. The most likely cause of this case of food intoxication is
A) botulinum toxin.
B) aflatoxin.
C) staphylococcal enterotoxin.
D) erythrogenic toxin.
E) cholera toxin.
C
43) Nonpathogenic Vibrio cholerae can acquire the cholera toxin gene by
A) phagocytosis.
B) lysogenic conversion.
C) conjugation.
D) transformation.
E) infecting a pathogenic Vibrio cholerae.
B
The best description of direct damage by a pathogen is
A.)
poisonous substances secreted by viruses kill cells.
B.) capsule
components of pathogens kill cells.
C.) superantigens cause
cytokine release which then cause symptoms of disease.
D.) host
cells destroyed when pathogens metabolize and multiply.
E.)
protein synthesis is interrupted by toxins.
D
Which is NOT specifically employed by pathogens to avoid destruction
by phagocytosis?
A.) possessing ability to replicate within a
phagolysosome
B.) possessing ability to remain dormant within a
phagocyte
C.) producing superantigens
D.) producing a
capsule
E.) forming biofilms
C
A retired contract administrator who enjoyed gardening sought medical
attention for what appeared to be a sinus infection. He received
antimicrobials but the conditioned worsened and he was experiencing
severe painful spasms in his jaw. He admitted to injuring himself with
a gardening tool while wearing sandals in the yard but did not seek
medical attention for the wound. The man is likely
experiencing
A.) intoxication caused by a focal C. tetani
infection.
B.) allergic rhinitis.
C.) septic shock.
D.) LPS-mediated inflammatory response.
C.) meningitis.
A
For what reason might the ID50 for Salmonella Typhi decrease when a
rat simultaneously ingests sulfa drugs with the pathogen?
A.) The
antimicrobial inactivates stomach acid and allows the pathogen to more
readily pass to the intestine.
B.) It would not; the ID50 goes
up.
C.) The antimicrobial interferes with the microbiome
enabling the pathogen to more easily establish infection.
D.)
Salmonella Typhi becomes stronger in the presence of sulfa
drugs.
E.) There would not be an effect on the ID50.
C
Which pathogen and virulence factor are mismatched?
A.)
Neisseria gonorrhoeae - IgA protease
B.) Shigella sonnei -
coagulase
C.) Clostridium - hyaluronidase
D.) Streptococcus
pyogenes - M protein
E.) Streptococcus pneumoniae - capsule
B