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  • Question
  • Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of


  • Options
  • A. high osmotic pressure
  • B. low osmotic pressure
  • C. moderate osmotic pressure
  • D. high surface tension

  • Correct Answer
  • high osmotic pressure 


  • Antimicrobial Chemotherapeutic Agents problems


    Search Results


    • 1. Who developed the concept of specific toxicity?

    • Options
    • A. Pasteur
    • B. Fleming
    • C. Watson
    • D. Ehrlich
    • Discuss
    • 2. Which of the following methods would be most appropriate for sterilizing an antibiotic solution?

    • Options
    • A. Dry heat sterilization
    • B. Microfiltration
    • C. Autoclaving
    • D. Desiccation
    • Discuss
    • 3. The penicillin resistant to ?-lactamases is

    • Options
    • A. carbenicillin
    • B. closacillin
    • C. penicillin-G
    • D. ampicillin
    • Discuss
    • 4. Vancomycin inhibits peptidoglycan synthesis by binding

    • Options
    • A. D-alanyl - D-alanine
    • B. alanine racemase
    • C. D-alanyl - D-alanine synthetase
    • D. amidase
    • Discuss
    • 5. Which of the following drugs may show plasmid-mediated resistance?

    • Options
    • A. Nalidixic acid
    • B. Ampicillin
    • C. Rifampicin
    • D. Methicillin
    • Discuss
    • 6. The third generation cephalosporin agents is

    • Options
    • A. cefotaxime
    • B. cefoxitin
    • C. cephalothin
    • D. cephalexin
    • Discuss
    • 7. Cephalosporins and Penicillins interfere with which of the following?

    • Options
    • A. Protein synthesis
    • B. DNA function
    • C. Cell membrane function
    • D. Cell wall synthesis
    • Discuss
    • 8. The antibiotics not clinically useful for Pseudomonas aeruginosa infection is

    • Options
    • A. aminoglycosides
    • B. ceftazidime
    • C. piperacillin
    • D. trimethoprim-sulphamethoxazole
    • Discuss
    • 9. Because it can be used with a variety of media and allow a resuscitation step the __________ technique has become the common and often preferred method of evaluating the microbiological characteristics of water.

    • Options
    • A. most probable number
    • B. Winogradsky
    • C. MUG
    • D. membrane filtration
    • Discuss
    • 10. The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer

    • Options
    • A. greater
    • B. lesser
    • C. approximately equal to
    • D. half
    • Discuss


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