<prompt> Minimum inhibitory concentration is -The concentration of antibiotic which kills 99.9 of the bacteriaMaximum concentration of an antibiotic which prevents visible growth of a bacteriumMinimum concentration of an antibiotic which prevents visible growth of a bacteriumNone of the above  <response>: Ans. is c i.e., Minimum concentration of an antibiotic which prevents visible growth of a bacterium o Potency of antimicrobial agents is often referred as MIC. Minimum inhibitory concentration MIC o Lowest concentration of an antibiotic which prevents visible growth of a bacterium. Minimum bactericidal concentration MBC o The concentration of an antibiotic which kills 99.9 of the bacteria. A small difference between MIC and MBC indicates that the antibiotic is primarily bactericidal, while a large difference indicates bacteriostatic action. 