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Antimicrobial Drugs Overview Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. How do penicillin-treated bacteria die?

Question 2 2. How can the secretion of beta-lactamases protect bacteria from penicillin?

Question 3 3. Walter was recently diagnosed with a case of genital warts stemming from the human papillomavirus. Which of the following courses of treatment may his physician prescribe?

Question 4 4. Which test uses plastic strips with known concentrations of antibiotics?

Question 5 5. If vancomycin and bacitracin both target the same step of peptidoglycan synthesis, then why can't bacitracin be used as a drug of last resort against systemic infections with multi-drug resistant pathogens?

Page 2

Question 6 6. Why is the cell wall a good target for an antibiotic?

Question 7 7. Which of the following is NOT a class of antiretroviral drugs?

Question 8 8. Why would a person take probiotics when undergoing a course of antibiotic treatment?

Question 9 9. How do bacteria become resistant to rifamycin antibiotics?

Question 10 10. Antimicrobial peptides tend to be _____ charged, and bacterial surfaces tend to be _____ charged.

Page 3

Question 11 11. Antibiotics that poke holes in the plasma membranes of bacteria are _____.

Question 12 12. Why is trimethoprim selectively toxic?

Question 13 13. Which antibiotic resistance strategy is analogous to security personnel expelling rowdy party-goers back outside?

Question 14 14. What is a helminth?

Question 15 15. Which of these statements is NOT true about drug-resistant tuberculosis?

Page 4

Question 16 16. Which of these antifungal drugs inhibits microtubules?

Question 17 17. A patient comes into the hospital with a severe intestinal infection. She says she is a technician in a biology lab that works with the Gram-negative bacterium Shigella flexneri, which you know causes dysentery. At the moment, your hospital has run out of all antibiotics except protein synthesis inhibitors. Which of these drugs would NOT be a good choice to give your patient?

Question 18 18. Because penicillin is more effective against Gram-positive bacteria, it is an example of a/an _____ antibiotic.

Question 19 19. Which of these is NOT a strategy that is known to make bacteria resistant to penicillin?

Question 20 20. Which of the following viruses is NOT typically treated with antiviral drugs?

Page 5

Question 21 21. What is a zone of inhibition?

Question 22 22. How do we distinguish cephalosporins from penicillins?

Question 23 23. What is the common modern meaning of the word antibiotic?

Question 24 24. What is a nucleoside analog?

Question 25 25. Which bacterium causes severe antibiotic-associated diarrhea?

Page 6

Question 26 26. Which bacterial process(es) do quinolones and fluoroquinolones inhibit?

Question 27 27. Which of the following molecules is a lipopeptide antibiotic used to treat multidrug-resistant MRSA infections?

Question 28 28.

You take a bacterial culture and spread it on an agar culture plate that contains an antibiotic. After leaving it overnight in an incubator, no colonies grow.

Then you swipe a sterile swab around the plate and streak it onto a new plate that has no antibiotics. After leaving that plate overnight in an incubator, colonies grow.

What type of antibiotic was in the first plate?

Question 29 29. Why are sulfa drugs selectively toxic?

Question 30 30. Which of the following is NOT a depiction of how antibiotic misuse can increase antibiotic resistance?

Antimicrobial Drugs Overview Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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