Antibiotics and Their Properties

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Questions and Answers

Which of these antibiotics is effective against anaerobic bacteria?

  • polymyxin-a
  • Tetracyclen (correct)
  • Ampecilin
  • Citreptomycin-i

Aminoglycosides are bactericidal for which type of bacteria?

  • Clostridia
  • Negative bacilli (correct)
  • Anaerobic bacteria
  • Spring

The resistance against streptomycin develops quickly through which mechanism?

  • Mutations
  • Inhibition of drug transfer into bacteria
  • Production of enzymes that metabolize the drug
  • All of the above (correct)

Which antibiotic is used to treat children with enteritis caused by pathogenic strains of E. coli?

<p>Neomycin (B)</p>
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Gentamicin and tobramycin are used to treat all the following bacterial types EXCEPT?

<p>Pneumococci (D)</p>
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What is the main reason for the rapid development of resistance against streptomycin?

<p>Genetic mutations (A)</p>
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Study Notes

Antibiotics

Citreptomycin-i

  • No additional information provided about Citreptomycin-i

Ampecilin

  • No additional information provided about Ampecilin

Tetracyclen

  • No additional information provided about Tetracyclen

Polymyxin-a

  • No additional information provided about Polymyxin-a

Aminoglycosides

  • Aminoglycosides are bactericidal against:
    • Springbachacteria
    • Clostridia
    • Anaerobic bacteria
    • Gram-negative bacilli

Streptomycin Resistance

  • Resistance to Streptomycin develops rapidly through:
    • Mutations
    • Inhibition of drug transfer into the bacterial cell
    • Production of enzymes that inactivate the drug
    • All of the above

E.Coli Treatment

  • Neomycin is used to treat children infected with pathogenic E.Coli strains that cause intestinal inflammation

Gentamycin and Tobramycin

  • Gentamycin and Tobramycin are used to treat all types of bacteria, except:
    • Serratia
    • Klebsiella
    • Pseudomonas
    • Pneumococci

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