<prompt> All of the following anti-microbials show Concentration dependent Killing exceptAmikacinMetronidazolePenicillin GFluoroquinolones  <response>: Time dependent killingTDK : Here, the killing activity depends upon the length of time, plasma concentration is above MIC. It is shown by: Beta Lactams. Vancomycin Concentration dependent killingCDK : Here, killing activity depends upon the ratio of plasma concentration to MIC.It is shown by: Aminoglycosides. Flouroquinolone MetronidazoleTDK and CDK mainly apply to cidal drugs.So, Penicillin G is beta lactam and follows TDK. 