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Questions and Answers
Which type of bacteria stains purple or violet in a gram stain?
Which type of bacteria stains purple or violet in a gram stain?
- Gram positive (correct)
- Gram negative
- Neither
- Both
What color do gram negative bacteria stain in a gram stain?
What color do gram negative bacteria stain in a gram stain?
- Yellow or orange
- Pink or red (correct)
- Purple or violet
- Blue or green
What is the main difference between the cell walls of gram positive and gram negative bacteria?
What is the main difference between the cell walls of gram positive and gram negative bacteria?
- Gram negative cell walls contain a thick peptidoglycan layer (correct)
- Gram negative cell walls contain teichoic acids
- Gram positive cell walls contain a thick plasma membrane
- Gram positive cell walls contain a thin peptidoglycan layer
What is the main difference between exotoxins and endotoxins?
What is the main difference between exotoxins and endotoxins?
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Why are antibiotics effective against bacteria?
Why are antibiotics effective against bacteria?
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What methods do bacteria use to share antibiotic resistant genes?
What methods do bacteria use to share antibiotic resistant genes?
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How do bacteria transfer plasmid DNA to another bacterium?
How do bacteria transfer plasmid DNA to another bacterium?
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What happens when a virus injects DNA into a host cell?
What happens when a virus injects DNA into a host cell?
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