question
Common trait between Bacteroides, Fusobacterium, Bifidobacterium, and Clostridium?
answer
Anaerobes
question
Common trait between Escherichia coli and enterococci?
answer
Facultative anaerobes
question
Necessary bacteria in vaginal area important for protecting from infection?
answer
Lactobacillus
question
When the degree of pathogenicity is based on the proportion of people with symptoms and the severity of those symptoms?
answer
Virulence
question
Which bacteria has differing virulence between strains where one strain causes severe sore threat, while one causes necrotizing fasciitis?
answer
Streptococcus pyogenes
question
Relationship when Staph aureus and Clostridium are placed together?
answer
Commensalism
(staph aureus removes toxic O2)
(staph aureus removes toxic O2)
question
T/F, mosquito bites are an example of an intentional breech?
answer
FALSE, natural breech
question
Example of an intentional breech?
answer
Needle sticks
question
What are the 2 types of adhesins
answer
Pili (fimbriae)
Nonpilin adhesins (afimbriael)
Nonpilin adhesins (afimbriael)
question
What do pili adhere to?
answer
Sugar residues (on host cell)
question
What do afimbriael adhesins bind to?
answer
Outer membrane proteins
(on host cell)
(on host cell)
question
When bacteria used IgA proteases to adhere to mucous membranes, what will they bind to in order to hide from the immune system?
answer
FC receptor
question
Chlamydia
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
A. Obligate intracellular bacteria
question
Rickettsia
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
A. Obligate intracellular bacteria
question
Salmonella
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
B. Facultative intracellular bacteria
question
Shigella
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
B. Facultative intracellular bacteria
question
Legionella
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
B. Facultative intracellular bacteria
question
Mycobacterium
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
A. Obligate intracellular bacteria
B. Facultative intracellular bacteria
answer
B. Facultative intracellular bacteria
question
T/F, adhesins are molecules that facilitate invasive microbes to enter cells?
answer
FALSE, invasins
question
This bacteria can colonize surface of host and produce toxins?
A. Claviceps purpurea
B. Clostridium botulinum
C. Vibrio cholerae
D. Staphylococcus aureus
A. Claviceps purpurea
B. Clostridium botulinum
C. Vibrio cholerae
D. Staphylococcus aureus
answer
C. Vibrio cholerae
question
This bacteria can produce toxins that are ingested?
A. Vibrio cholerae
B. E. coli O157:H7
C. Corynebacterium diptheriae
D. Staphylococcus aureus
A. Vibrio cholerae
B. E. coli O157:H7
C. Corynebacterium diptheriae
D. Staphylococcus aureus
answer
D. Staphylococcus aureus
question
This bacteria can invade host tissues?
A. Staphylococcus aureus
B. Yersinia perstis
C. Corynebacterium diptheriae
D. Vibrio cholerae
A. Staphylococcus aureus
B. Yersinia perstis
C. Corynebacterium diptheriae
D. Vibrio cholerae
answer
B. Yersinia perstis
question
This bacteria can invade host tissues and then produce toxins?
A. Shigella dysenteriae
B. Yersinia perstis
C. Corynebacterium diptheriae
D. Vibrio cholerae
A. Shigella dysenteriae
B. Yersinia perstis
C. Corynebacterium diptheriae
D. Vibrio cholerae
answer
A. Shigella dysenteriae
question
T/F, gram-positives have endotoxins?
answer
FALSE, gram-negatives
question
Neurotoxins, Enterotoxins, and Cytotoxins are in what exotoxin category?
answer
A-B toxins
question
Which is a neurotoxin?
A. Shigella dysenteriae
B. E. coli O157:H7
C. Corynebacterium diptheriae
D. Clostridium tetani
A. Shigella dysenteriae
B. E. coli O157:H7
C. Corynebacterium diptheriae
D. Clostridium tetani
answer
D. Clostridium tetani
(rest are cytotoxins)
(rest are cytotoxins)
question
Which is a enterotoxin?
A. Shigella dysenteriae
B. Streptococcus pyogenes
C. Vibrio cholerae
D. Clostridium tetani
A. Shigella dysenteriae
B. Streptococcus pyogenes
C. Vibrio cholerae
D. Clostridium tetani
answer
C. Vibrio cholerae
question
Which is a cytotoxin?
A. Streptococcus pyogenes
B. Clostridium botulinum
C. Vibrio cholerae
D. Shigella dysenteriae
A. Streptococcus pyogenes
B. Clostridium botulinum
C. Vibrio cholerae
D. Shigella dysenteriae
answer
D. Shigella dysenteriae
question
T/F, the A component of A-B exotoxin exerts the toxic effect?
answer
TRUE
question
Which bacteria creates the characteristic β-hemolysis when grown on blood agar medium through Streptolysin O?
answer
Streptococcus pyogenes
question
Which bacteria uses phospholipase to damage host membranes, which can cause gas gangrene?
answer
Clostridium perfringens
question
T/F, superantigens can lead to anaphylactic shock?
answer
TRUE
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