Concept explainers
Interpreting Data Because bacteria divide by binary fission, their
Initial number of cells × 2(Number of generations) = Population size
For example, if a dish of potato salad is contaminated with 10 bacteria, the bacterial population after 1 hour (two generations) is 10 × 22 = 40. Fill in the table below to show how the bacterial population increases when a dish of potato salad is left on the kitchen counter after dinner.
Time (Hours) | Number of Generations | Number of Bacteria |
0 | 0 | 10 |
1 | 2 | 40 |
2 | 4 | |
4 | 8 | |
6 | 12 | |
8 | 16 | |
10 | 20 | |
12 | 24 |
Why does the rate of increase change over time? Describe how a graph of the data would look.
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Campbell Essential Biology (6th Edition) - standalone book
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