During which growth phase will gram-positive bacteria be most susceptible to penicillin?
A)lag phase
B)log phase
C)death phase
D)stationary phase
E)The culture is equally susceptible during all phases.

Question

Quizplus · Accepted Answer

Gram-positive bacteria are most susceptible to penicillin during their log phase of growth, when they are actively synthesizing new cell wall material. During this phase, penicillin can interfere with the formation of the bacterial cell wall and lead to the death of the cell. In contrast, during the lag phase, bacteria are not yet actively growing and may not be synthesizing new cell wall material. In the stationary and death phases, the bacteria are either not growing or are in the process of dying off, making them less susceptible to antibiotics.

During Which Growth Phase Will Gram-Positive Bacteria Be Most Susceptible