question
Pathogenic strains that have become resistant to antimicrobial drugs are found in which of the following genera?
answer
Staphylococcus, Mycobacterium, enterococcus
question
Which of the following microbes would not be contracted via eating?
answer
Streptococcus pyogenes
question
Group B Strep is a special problem for which age group?
answer
Newborns
question
The cells pictured:
answer
Lack cell walls, are pleomorphic, and have sterol in their membranes
question
How does Staph aureus invade into tissues to cause infection in the human body?
answer
S. aureus produces an enxyme that dissolves hyaluronic acid and thus enables it to pass between the cells
question
Which of the following molecules is associated with the ability of Staph aureus to evade phagocytosis
answer
Protein A
question
Which of the following is not a characteristic of mycoplasmas
answer
Cytochromes
question
Of the following, which can survive the harshest conditions?
answer
Staphylococcus
question
Following treatment with a broad-spectrum antibiotic, an opportunistic intestinal infection caused by _____ can develop
answer
Clostridium difficile
question
Which is a bile-tolerant anaerobe?
answer
Bacteroides
question
The pathogen Haemophilus influenza b causes
answer
Meningitis in children
question
Which of the following is not a designation for an external antigen of enteric bacteria
answer
C
question
Which bacterium causes infections in many burn victims?
answer
Pseudomonas aeruginnosa
question
Which of the following statements is true?
answer
PID can result from Neisseria infection
question
Which of the following bacteria might be responsible for the formation of petechiae
answer
Neisseria meningitidis
question
All of the following are molecules associated with the outer membrane of the family enterobacteriaceae except
answer
H-antigen
question
Which of these microorganisms causes a sexually transmitted disease?
answer
Haemophilus ducreyi
question
Which of the following organisms is a gram negative cocci that causes significant disease in humans?
answer
Neisseria
question
Which of the following statements is true of Q fever?
answer
For many years, its cause was questionable
question
A coliform bacterium that contaminates dairy products is
answer
Enterobacter
question
Which of the following diseases is typically mild
answer
Cat scratch fever
question
Why are antibiotics generally not used to treat diarrheal diseases caused by enteric bacteria?
answer
Most cases of diarrhea are self-limiting
question
Which of the following bacterial cells is most likely to be virulent?
answer
A cell with fimbrae, lipooligosaccharide, and polysaccharide capsule
question
All of the following are members of te family enterobacteriaceae except
answer
Pseudomonas
question
The lipid A endotoxinfound in the lipopolysaccharide layer of gram negative bacteria may cause DIC. DIC ________
answer
Affects the formation of blood clots in the host
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