The Broth Dilution Test Can Provide Information for Determining

Question

The broth dilution test can provide information for determining
A) the molecular target of an antibiotic.
B) the MIC (minimum inhibitor concentration).
C) the rate of diffusion of an antibiotic.
D) the MBC (minimum bactericidal concentration), with an additional step.
E) both the MIC and the MBC (with an additional step).

Accepted Answer

The broth dilution test is used to determine the MIC (minimum inhibitory concentration) of an antibiotic, which is the lowest concentration of an antibiotic that inhibits the visible growth of a bacterium. With an additional step, such as subculturing the bacteria on antibiotic-free media, it can also determine the MBC (minimum bactericidal concentration), which is the lowest concentration of an antibiotic that kills the bacterium.