10 Questions
Which of the following best describes the primary habitat of Bacillus spp.?
Soil
What is the major factor responsible for the virulence of Bacillus anthracis?
Capsule
In which type of animals is Bacillus anthracis primarily a disease?
Herbivorous animals
What is the characteristic shape of Bacillus anthracis bacteria?
Rod-shaped
Under which conditions do central, non-swelled spores of B. anthracis develop?
In culture outside the human body
Which protein component of B. anthracis forms edema toxin when combined with protective antigen?
Edema factor (EF)
What is the causative agent of pulmonary anthrax?
Bacillus anthracis
What is the incubation period for pulmonary anthrax?
Up to 6 weeks
Which species causes food poisoning with enterotoxins that have emetic or diarrheal effects?
Bacillus cereus
What is the characteristic appearance of B. anthracis colonies on blood agar?
Large, grayish, and non-hemolytic with an irregular border
Test your knowledge of the general characteristics and medical importance of Bacillus spp. in Medical Microbiology Lecture No. 8-10. Explore the features of Bacillus anthracis, Bacillus cereus, and Bacillus subtilis.
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