The Logistic Model

The two dependent variables accounted for in the logistic model are:

$Y$ -

Population density of yeast cells in the solution.

$S$ -

Concentration of glucose in the solution.

The model will assume that the solution is well-mixed, so that there is no spatial structure to either variable, that there is only one population of organisms using glucose, and that temperature, oxygenation, etc. are held constant in the solution.