Lag Phase
During the lag phase, the rate of growth is slow. All nutrients are situated outside the cell initially. Some time is needed for an adequate amount of nutrients to move from the outside of the cell into the interior of the cell. This is vital as the cell requires the nutrients for growth.
Exponential Phase
Nutrients are consumed during the cell growth and the growth is exponential as long as there are enough nutrients available. The exchange of nutrients ensures that the intra- and extracellular nutrient concentration are the same.
Stationary Phase
The growth of the colony ceases in number and in volume due to a finite concentration of nutrients, hence it does not have a gradient. Other causes may be death and cell division.
--Mabult 12:05, 27 October 2008 (UTC) Fine! Now that you have given a little overview of the different pahses of the growth curve it is time to introduce your model
Create a new section for the Model , give the equations,and explain how they relate to the what you have wirtten before
To further enhance the accuracy of the model, the following information will be extracted from experimental data, resulting in a model that will produce a closer fit to the trend given by the experimental data.
- Time span of lag phase, stationary phase and exponential phase
- The growth rate
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