Microorganisms and Disease - Problem Set
Q. What is the main purpose of the Gram stain in microbiology?
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A.
To identify viral infections
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B.
To differentiate bacterial species
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C.
To determine antibiotic susceptibility
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D.
To visualize fungal structures
Solution
The Gram stain is used to differentiate bacterial species based on the characteristics of their cell walls.
Correct Answer: B — To differentiate bacterial species
Q. Which bacterium is known for causing cholera?
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A.
Vibrio cholerae
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B.
Salmonella enterica
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C.
Clostridium botulinum
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D.
Listeria monocytogenes
Solution
Vibrio cholerae is the bacterium responsible for cholera, a disease characterized by severe diarrhea and dehydration.
Correct Answer: A — Vibrio cholerae
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