Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

Researchers examined how sensitive and resistant a bacterium named Clostridium difficile was to four different antibiotics. Bacterial colonies were cultured on agar plates for 24 hours, and then a separate antibiotic was applied to each plate. The numbers of bacterial colonies that died, stopped increasing in size and kept growing were then recorded. A bacterial colony is a cluster of bacterial cells that has arisen from one bacterium. Which antibiotic would be the most suitable for treating a person infected with Clostridium difficile?

  • Aampicillin
  • Bclindamycin
  • Cmetronidazole
  • Dcefoxitin

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