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Questions and Answers
Which of the following is a characteristic of Bacillus anthracis?
Which of the following is a characteristic of Bacillus anthracis?
- Square ends in long chains (correct)
- Non-capsulated inside the animal body
- Spores formed in blood or internal tissues of living animals
- Motile with flagella
Which statement about Bacillus cereus is true?
Which statement about Bacillus cereus is true?
- Gram-negative bacteria
- Produce enterotoxins (correct)
- Non-saprophytic contaminants
- Anaerobic spore-forming bacilli
What are the general characteristics of spore forming gram-positive Bacilli?
What are the general characteristics of spore forming gram-positive Bacilli?
- Small, Gram-negative, and motile
- Aerobic or facultatively anaerobic (correct)
- Produce endospores & are catalase negative
- Mainly found in acidic environments
What is a common habitat for spore forming gram-positive Bacilli?
What is a common habitat for spore forming gram-positive Bacilli?
Which spore forming gram-positive Bacillus species is the causative agent of anthrax?
Which spore forming gram-positive Bacillus species is the causative agent of anthrax?
Which of the following is a characteristic of spore forming gram-positive Bacilli?
Which of the following is a characteristic of spore forming gram-positive Bacilli?
Which species of Bacillus is known for producing enterotoxins?
Which species of Bacillus is known for producing enterotoxins?
What is the primary habitat for spore forming gram-positive Bacilli?
What is the primary habitat for spore forming gram-positive Bacilli?
Which characteristic is specific to Bacillus anthracis among spore forming gram-positive Bacilli?
Which characteristic is specific to Bacillus anthracis among spore forming gram-positive Bacilli?
What is the cultural characteristic of Bacillus anthracis on simple agar media?
What is the cultural characteristic of Bacillus anthracis on simple agar media?
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Study Notes
Characteristics of Spore Forming Gram-Positive Bacilli
- Bacillus anthracis is a spore-forming, gram-positive Bacillus species that is the causative agent of anthrax.
- General characteristics of spore-forming gram-positive Bacilli include being aerobic or facultatively anaerobic, catalase-positive, and able to produce endospores.
Characteristics of Bacillus anthracis
- Bacillus anthracis is characterized by its non-hemolytic colonies on blood agar.
- It has a cultural characteristic offorming a "string of pearls" on simple agar media.
Bacillus cereus
- Bacillus cereus is a spore-forming gram-positive Bacillus species that is known for producing enterotoxins.
Habitat of Spore Forming Gram-Positive Bacilli
- Soil and decaying organic matter are common habitats for spore-forming gram-positive Bacilli.
- The primary habitat for spore-forming gram-positive Bacilli is soil.
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