Genus Bacillus Morphology and Pathogenicity Quiz

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Questions and Answers

At what temperature do the spores of Bacillus anthracis form?

  • 40°C (correct)
  • 25°C
  • 30°C
  • 15°C

What is the most pathogenic species in the genus Bacillus?

  • Bacillus cereus
  • Bacillus anthracis (correct)
  • Bacillus subtilis
  • Bacillus thuringiensis

What is the morphology of Bacillus anthracis in tissues?

  • Short chains with rounded ends of cells (correct)
  • Spores central to subterminal
  • Long chains with square ends
  • Single capsule enclosed organisms

What is the composition of the capsule of Bacillus anthracis?

<p>Polymers of D-glutamic acid and polysaccharide (B)</p> Signup and view all the answers

How are the colonies of Bacillus anthracis described on agar?

<p>Ground glass-like appearance with locks of wavy hair (B)</p> Signup and view all the answers

How are vegetative cells of Bacillus anthracis destroyed?

<p>Enzymes and putrefactive bacteria (C)</p> Signup and view all the answers

What are the major anthrax enzootic zones mentioned in the text?

<p>India, Pakistan, Africa, South America (D)</p> Signup and view all the answers

How is anthrax infection typically transmitted according to the text?

<p>Through ingestion of spores (B)</p> Signup and view all the answers

What is the main cause of death in animals infected with anthrax?

<p>Extracellular toxin release (D)</p> Signup and view all the answers

What is the source of anthrax infection mentioned in the text?

<p>Bloodsucking flies and carrion eaters (A)</p> Signup and view all the answers

Which component listed below is NOT part of the anthrax toxin complex mentioned in the text?

<p>Hyperactive agent (HA) (A)</p> Signup and view all the answers

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