4. After incubation of the plates for 48 hours, the antibiotic (does or does not?) extend into the agar beyond the zone of inhibition. This concept is related to the minimum inhibitory concentration (MIC) because 5. Suppose that you do the Kirby-Bauer test using penicillin (P 10) and chloramphenicol (C 30) on a bacterial lawn of a Staphylococcus species. a. If you record zone diameters of 25mm for both the penicillin and chloramphenicol disks. The (which antibiotic?) is more effective against this particular Staphylococcus species. b. When interpreting data regarding the zones of diameter, it is important to refer to the zone diameter interpretive table because 6. While we did not complete the optional exercise on page 451 (in the interest of time, because we are at the very end of the quarter), you have thought about it and determined that the purpose of inoculating TSA plates with samples taken from the zone of inhibition is.