Optical Density and Viable Cell Concentration are LEAST Proportional to Each

Question

Optical density and viable cell concentration are LEAST proportional to each other during the
A) lag phase.
B) exponential growth phase.
C) stationary phase.
D) death phase.

Accepted Answer

During the death phase, there is a decrease in viable cells due to cell death and lysis, which can breakdown cell components and interfere with the relationship between cell count and optical density. Thus, optical density and viable cell concentration are least proportional to each other during the death phase.