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Bacillus anthracis Morphology and Pathogenicity

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Bacillus anthracis Morphology and Pathogenicity

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Questions and Answers

What is the most pathogenic strain mentioned in the text?

Bacillus subtilis

Bacillus anthracis (correct)

Bacillus cereus

Bacillus thuringiensis

At what temperature range are spores of Bacillus anthracis formed?

40-60°C

10-20°C

5-10°C

15-40°C (correct)

What is the morphology of Bacillus anthracis in tissues?

Single capsule encloses organisms in chain

Solid filaments with square ends

Short chains with rounded ends (correct)

Long chains with square ends

Which characteristic describes the colonies of Bacillus anthracis on agar under low power magnification?

Resemble locks of wavy hair (Medusa-head) Signup and view all the answers

Where are the major anthrax enzootic zones located according to the text?

Tropics and subtropics like India, Pakistan, Africa, South America Signup and view all the answers

What is the capsule of Bacillus anthracis made up of?

Polymers of D-glutamic acid and some polysaccharide Signup and view all the answers

How does infection usually occur in anthrax?

Inhalation of spores Signup and view all the answers

What is the main source of infection for anthrax?

Bone meal and vegetable protein Signup and view all the answers

What can be a symptom of anthrax before death?

Hemorrhaging Signup and view all the answers

What is the role of Protective Antigen in anthrax infection?

Necessary for biological activity of other factors Signup and view all the answers

How is localized anthrax commonly transmitted?

Through wounds on the skin Signup and view all the answers

How is anthrax diagnosed?

By blood samples from ear veins Signup and view all the answers