Bacillus
About the Lecture
The lecture Bacillus by Sean Elliott, MD is from the course Bacteria.
Included Quiz Questions
Which of the following species belonging to the Bacillus genus is most likely to be implicated if a patient presents with "reheated rice syndrome"?
- Bacillus cereus
- Bacillus thuringiensis
- Bacillus anthracis
- Bacillus subtilis
- Bacillus mycoides
Which of the following refers to the pathogenic mechanism of action of the edema factor produced by Bacillus anthracis?
- Increase in cyclic AMP
- Decrease in cyclic AMP
- Cleavage of phosphokinase
- Increase in cyclic GMP
- Decrease in cyclic GMP
Which of the following is responsible for the manifestation of rapid-onset, excessive vomiting in patients infected with Bacillus cereus?
- Heat-stable enterotoxin
- Heat-labile enterotoxin
- Lethal factor
- Edema factor
- Protective factor
Which of the following characteristic findings is observed on blood agar when growing a specimen obtained from an individual infected with Bacillus anthracis?
- Medusa-head colonies
- Alpha-hemolysis
- Beta-hemolysis
- Double-zone hemolysis
- Pinpoint colonies
Which of the following brings about the cleavage of phosphokinase in the cells of a patient who has cutaneous anthrax?
- Lethal factor
- Edema factor
- Heat-labile exotoxin
- Heat-stable exotoxin
- Protective factor
Food poisoning manifesting as nausea, abdominal cramps, and excessive vomiting due to infection with Bacillus cereus usually develops within how many hours after ingestion of the contaminated food?
- Within 5 hours
- Within 8 hours
- Within 12 hours
- Within 18 hours
- Within 24 hours
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Author of lecture Bacillus
Sean Elliott, MD
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Really liking the microbio bacteria videos. Feel like the presentation of the info is well done and really easy to grasp in such a short amount of time.
