Introduction
In this experiment, the gram negative bacterium Escherichia coli is being subjected to various environmental factors that affect the rate of growth. These factors scrutinized were the different types of nutrients, the intensity of aeration, or the temperature at which it was stored. The purpose of this lab is to determine which factor affects the Escherichia coli the greatest. It is known that these abiotic factors affect the rate of growth the greatest if they remain at the correct conditions for living.
Escherichia coli and other bacteria will go through four phases; a lag phase, log phase, stationary phase, and a death phase. In the lag phase, the bacteria reproduce fairly slowly, as they are preparing for the rapid division (Doyle). In this lag phase the bacteria is making fats and proteins which will jump-start the log phase (Doyle).
The next phase in the bacteria's life cycle is the log (logarithmic or exponential) phase. At this point, the bacteria......
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