This kit, based on the Bauer-Kirby test, investigates the effectiveness of three antibiotics using disks of penicillin, tetracycline and chloramphenicol on a petri dish. The following day, students measure the clear zones of inhibition around each disk to find out which of the three antibiotics were most effective against each bacteria.
30 Total Count Easygel
30 Easygel Petri Dishes
3 broth cultures (Enterobacter aerogenes, Bacillus cereus, Sarcina lutea)
3 tubes of 30 treated disks (Penicillin, Tetracyline, Chloramphenicol)
6 1 mL Droppers
Student worksheet (for duplication)
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