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Unformatted text preview: graph, when the optical density is 0.2 (2 x 0.1), the corresponding time is 48 minutes. Therefore the doubling time for the culture in temperature 22 °C is approximately 36 minutes. The growth rate is the reciprocal of the doubling time. 36 minutes is 0.6 (3/5) of an hour and the reciprocal is 5/3, which is approximately 1.67gen/hr. 2). The optimal temperature, according to the table is somewhere around 37°C. 3). My hypothesis: the optimal temperature for E. coli growth would be around 37°C, because E. coli were found in the humans, and the average temperature of the human body was around 37°C and. The least growth would be observed around 50°C. Based on the data collected in class, the optimal temperature for E. coli growth is 37°C, and the least growth would be observed around 50°C. Thus, the data supported the hypothesis....
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- Microbiology, Hour, Exponentials