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Antibacterial and Antiviral Medications Exam Questions and Answers, Exams of Medical Sciences

Joseph Chamberlain CollegeMedical Sciences

An overview of antibacterial and antiviral medications, focusing on their mechanisms of action and microbial resistance. It includes questions and answers related to the effectiveness of antibiotics against viruses, ways to slow antimicrobial resistance, mechanisms of microbial resistance, targets of antiparasitic medications, selective toxicity of antimicrobials, methods of antimicrobial susceptibility testing like the kirby-bauer test, mechanisms of antiviral medications, and the inhibition of bacterial metabolic pathways and cell wall synthesis. The document also addresses the concept of selective toxicity and spectrum of activity.

Typology: Exams

2024/2025

Available from 05/17/2025

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OVERVIEW OF ANTIBACTERIAL AND
ANTIVIRAL MEDICATIONS 2025
EXAM. QUESTIONS & CORRECT
ANSWERS. GRADED A
Antibiotics that target which of the following would be effective against
viruses?
1. Folic acid biosynthesis.
2. None of the choices.
3. More than one of the choices.
4. Peptidoglycan synthesis
5. 70S ribosome function. - ANSNone of the choices
Antibiotics that target which of the following would be effective against
viruses?
1. None of the choices.
2. Peptidoglycan synthesis
3. Folic acid biosynthesis.
pf3
pf4
pf5

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OVERVIEW OF ANTIBACTERIAL AND

ANTIVIRAL MEDICATIONS 2025

EXAM. QUESTIONS & CORRECT

ANSWERS. GRADED A

Antibiotics that target which of the following would be effective against viruses?

  1. Folic acid biosynthesis.
  2. None of the choices.
  3. More than one of the choices.
  4. Peptidoglycan synthesis
  5. 70S ribosome function. - ANSNone of the choices Antibiotics that target which of the following would be effective against viruses?
  6. None of the choices.
  7. Peptidoglycan synthesis
  8. Folic acid biosynthesis.
  1. 70S ribosome function.
  2. More than one of the choices. - ANS1. None of the choices Identify all the ways that could help slow the emergence and spread of antimicrobial resistance.
  3. Educate patients on the proper use of prescribed drugs (don't skip a dose).
  4. Encourage stricter regulations of medications in developing countries.
  5. Encourage patients to stop taking medication as soon as they feel better.
  6. Train healthcare workers to use proper handwashing and other hygiene measures when dealing with patients.
  7. Encourage appropriate administration of drugs (don't over prescribe).
  8. Only use antibiotics for serious viral infections, not for common colds. - ANS1, 2, 4, 5 Identify the two major mechanisms by which microbes can acquire resistance to antimicrobial medications.
  9. Spontaneous mutation

Please choose the method of antimicrobial susceptibility testing that involves measuring and evaluating zones of inhibition around antibiotic discs placed on a culture of bacteria prior to incubation.

  1. ELISA test
  2. Beta-lactamase test
  3. Gram stain test
  4. Kirby-Bauer test
  5. Tube dilution test - ANS4. Kirby-Bauer test Please select all the different mechanisms by which antiviral medications work.
  6. Preventing viral cell wall synthesis
  7. Preventing entry of the virus into the host cell
  8. Directly disrupting viral capsids
  9. Blocking viral nucleic acid synthesis
  10. Preventing the maturation of viral particles
  11. Directly disrupting viral envelopes - ANS2, 4, 5 Please select the four major mechanisms of antimicrobial resistance.
  1. Increase in elimination of a medication (uses special pumps to remove the medication from the cell)
  2. Utilizing the antimicrobial medication as an energy source
  3. Decreased uptake of the medications
  4. Altered target site, such that the antibiotic can no longer bind to the target
  5. Producing drug-inactivating enzyme(s) - ANS1, 3, 4, 5 Please select the four major mechanisms of antimicrobial resistance.
  6. Increase in elimination of a medication (uses special pumps to remove the medication from the cell)
  7. Utilizing the antimicrobial medication as an energy source
  8. Decreased uptake of the medications
  9. Altered target site, such that the antibiotic can no longer bind to the target
  10. Producing drug-inactivating enzyme(s) - ANS1, 3, 4, 5
  1. Tetracycline
  2. Bacitracin
  3. Chloramphenicol - ANS1, 2, 4 Which of the following statements about antibiotic resistance is FALSE?
  4. Combination therapy reduces the likelihood of a bacterium developing resistance.
  5. Patients should stop taking antibiotics as soon as they feel better, to avoid developing resistance.
  6. Efflux pumps allow some bacteria to eject antibiotics.
  7. A single mutation may be sufficient for a bacterium to develop resistance. - ANS2. Patients should stop taking antibiotics as soon as they feel better, to avoid developing resistance.