Bacteria exists a micro-organisms and every bacteria has its own growth rate like Escherichia coli grow in 17 minutes.
Exponential growth is a process of increases quantity over time. It occurs when the instantaneous of change of quantity with respect to time proportional to the quantity itself.
Growth is a geometric progression is called exponential growth .It occurs in bacteria. The generation time of E coli is 15 - 20 mins. There are four phases in growth of bacteria are Lag phase, exponential, stationary and death phase .
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