Act by disrupting cell membranes. Cell division in bacteria, unlike eucaryotes, usually occurs by binary fission . In binary fission a cell a cell duplicates and divides into two cells. The daughter cell becomes complete when the septum is complete. Unlike eucaryotes, bacterial cells generally do not have a cell cycle.
Some microorganisms duplicate through budding e.g. yeast.
The incept on the Y-axis equals logN0. This ia variable in duration, but ingeneral is directly related to the duration of the preceeding stationary phase. For aerobic organisms the nutrient that generally becomes limiting is O2, due to the fact that the rate of diffusion of O2 into the culture medium cannot match the amount needed for the growth of the bacteria. However, cells continue to turnover with approximately an equal number dying as new ones are being formed. Here a beam of light is passed through a bacterial suspesion and the bacteria within that suspension scatter the light, i.e. the reduction in the amount of light transmitted is a direct relection on cell density.