Table 20.2
The following results were obtained from a disk-diffusion test for microbial susceptibility to antibiotics.Staphylococcus aureus was the test organism.
$$\begin{array} { | c | c | }
\hline \text { Antibiotic } & \text { Zone of Inhibition } \
\hline \text { A } & 3 \mathrm {~mm} \
\hline \text { B } & 7 \mathrm {~mm} \
\hline \text { C } & 0 \mathrm {~mm} \
\hline \text { D } & 10 \mathrm {~mm} \
\hline
\end{array}$$
-In Table 20.2,the antibiotic that exhibited bactericidal action was

Question

Table 20.2
The following results were obtained from a disk-diffusion test for microbial susceptibility to antibiotics.Staphylococcus aureus was the test organism.
 $$\begin{array} { | c | c | } 
\hline \text { Antibiotic } & \text { Zone of Inhibition } \
\hline \text { A } & 3 \mathrm {~mm} \
\hline \text { B } & 7 \mathrm {~mm} \
\hline \text { C } & 0 \mathrm {~mm} \
\hline \text { D } & 10 \mathrm {~mm} \
\hline
\end{array}$$
-In Table 20.2,the antibiotic that exhibited bactericidal action was

Quizplus · Accepted Answer

The size of the zone of inhibition indicates the effectiveness of the antibiotic against the bacteria, but it does not distinguish between bactericidal (killing bacteria) and bacteriostatic (inhibiting the growth of bacteria) actions. Additional tests are required to determine the mode of action.

Table 202 the Following Results Were Obtained from a Disk-Diffusion Test

Table 202
the Following Results Were Obtained from a Disk-Diffusion Test