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Questions and Answers
What was the curious pattern of growth Alexander Fleming observed on the contaminated culture plates?
What was the curious pattern of growth Alexander Fleming observed on the contaminated culture plates?
- A circular mold growth with a halo of inhibited bacterial growth
- A clear area with no bacterial growth surrounding the mold (correct)
- A zig-zag pattern of mold growth through the middle of the bacterial culture
- A mold growth covering the entire surface of the culture plates
Which type of bacteria does penicillin work best on?
Which type of bacteria does penicillin work best on?
- Archaea
- Gram-positive bacteria (correct)
- Gram-negative bacteria
- Bacteria that produce spores
What effect does penicillin have on bacterial cells?
What effect does penicillin have on bacterial cells?
- It makes them leaky and fragile (correct)
- It causes them to produce more peptidoglycan
- It enhances their growth rate
- It makes them shrink in size
Why did Fleming almost toss out the contaminated culture plates?
Why did Fleming almost toss out the contaminated culture plates?
What did Fleming name the active inhibitor produced by Penicillium chrysogenum?
What did Fleming name the active inhibitor produced by Penicillium chrysogenum?
When was the enormous usefulness of penicillin first realized?
When was the enormous usefulness of penicillin first realized?
What is the scientific name for the mold Fleming discovered?
What is the scientific name for the mold Fleming discovered?
What is the main reason why penicillin is considered an antibiotic?
What is the main reason why penicillin is considered an antibiotic?
How did Fleming describe the initial growth pattern he observed around the mold?
How did Fleming describe the initial growth pattern he observed around the mold?
Whose work led to the discovery of penicillin?
Whose work led to the discovery of penicillin?
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