Antibiotics and resistance Quiz
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5 questions, one answer each
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1. Penicillin is described as bactericidal because it:
- A. stops protein synthesis
- B. kills bacterial cells
- C. only slows growth
- D. blocks viral replication
2. Which structure does tetracycline bind to?
- A. The cell wall
- B. The plasmid
- C. The bacterial ribosome
- D. The cell surface membrane of human cells
3. A bacterial population is treated with an antibiotic and a few cells survive. Why do these cells matter?
- A. They are the largest cells
- B. They are likely to carry a resistance gene and will reproduce
- C. They have adapted individually during exposure
- D. They cannot reproduce
4. Which is a reason that stopping an antibiotic course early increases resistance?
- A. The drug becomes toxic to the patient
- B. Plasmids are destroyed
- C. Less sensitive bacteria survive and multiply
- D. Antibiotics stop working on viruses
5. Why can resistance spread between different species of bacteria?
- A. Resistance genes on plasmids can be transferred between cells
- B. Mutation is the same in all species
- C. Antibiotics change the DNA of nearby cells
- D. All bacteria share a cell wall