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Question

Which of the following antibiotics is bactericidal?

A
Erythromycin
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B
Tetracycline
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C
Penicillin
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D
Chloramphenicol
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Solution

The correct option is C Penicillin
  • An antibiotic refers to a substance produced wholly or partly by chemical synthesis, which in low concentrations inhibits the growth or destroys microorganisms by intervening in their metabolic processes.
  • Antibiotics have either cidal (killing) effect or a static (inhibitory) effect on microbes.
  • Bactericidal-Penicillin,Aminoglycosides,Ofloxacin
  • Bacteriostatic-Erythromycin,Tetracycline,Chloramphenicol
  • Ampicillin and Amoxycillin are synthetic modifications of penicillins. These have broad spectrum. It is absolutely essential to test the patients for sensitivity (allergy) to penicillin before it is administered

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