lab 13

• chemotherapeutic agents


  chemical agents that inhibit or prevent microbial growth
• antibiosis


  mechanism of inhibition
• broad spectrum


  wide range of gram +/- bacteria
• narrow spectrum


  restricted number of bacteria
• antiseptics, disinfectants, and antibiotics must exhibit

  selective toxicity
• Kirby-Bauer


  test determine susceptibility of an organism to an antibiotic
• zone of inhibition


  if antibiotic is effective against organism
• measuring zone of inhibition responses to antibiotic


  r - resistant s - susceptible i - intermediate
• what are some targets of antibiotics?

  cell wall, cell membrane, protein synthesis, nucleic acid synthesis
• antimicrobial susceptibility testing

  google image
• what are some major targets of microbial control?

  cell wall synthesis, cell membrane structure/function, DNA/RNA structure/function, protein synthesis, and folic acid synthesis