Podcast
Questions and Answers
What is the difference between a bactericidal and a bacteriostatic drug?
What is the difference between a bactericidal and a bacteriostatic drug?
- Bactericidal drugs are only effective against Gram-negative bacteria
- Bacteriostatic drugs kill bacteria
- Bactericidal drugs inhibit the growth of bacteria
- Bacteriostatic drugs do not kill bacteria, but inhibit their growth (correct)
Which of the following is true about antibiotics?
Which of the following is true about antibiotics?
- Antibiotics are only produced by fungi
- Antibiotics kill or inhibit the growth of microorganisms (correct)
- Antibiotics are only effective against bacteria
- Antibiotics are synthetic agents
Which of the following is true about resistance plasmids (R plasmids, R factors)?
Which of the following is true about resistance plasmids (R plasmids, R factors)?
- They replicate dependent on the bacterial chromosome.
- They can only be transferred by transformation.
- They are located within the bacterial chromosome.
- They carry genes for enzymes that can degrade antibiotics. (correct)
What is the difference between broad-spectrum and narrow-spectrum antibiotics?
What is the difference between broad-spectrum and narrow-spectrum antibiotics?
What is the main role of transposons in resistance plasmids?
What is the main role of transposons in resistance plasmids?
What is one reason why bacteria can be resistant to antibiotics even if the drug is present in the body?
What is one reason why bacteria can be resistant to antibiotics even if the drug is present in the body?
Under what circumstances can organisms that are killed by penicillin become insensitive to the drug?
Under what circumstances can organisms that are killed by penicillin become insensitive to the drug?
Which of the following is a mechanism that bacteria use to become resistant to antibiotics?
Which of the following is a mechanism that bacteria use to become resistant to antibiotics?
Which of the following is an example of bacteria reducing permeability to a drug?
Which of the following is an example of bacteria reducing permeability to a drug?
Which of the following best describes the effect of combining two drugs acting separately?
Which of the following best describes the effect of combining two drugs acting separately?
Which of the following is an example of a drug combination that exhibits synergism?
Which of the following is an example of a drug combination that exhibits synergism?
Which of the following best describes the effect of combining penicillin with a bacteriostatic drug?
Which of the following best describes the effect of combining penicillin with a bacteriostatic drug?
