Assignment 1: LASA 2: Bacterial Growth
As a medical research technician, you have been assigned the task of modeling the growth of five different strains of the E. coli bacteria. These bacteria are grown in Petri dishes and exposed to the same environmental conditions (food source, pressure, temperature, light, etc.). Each hour, you count and record the number of bacterial cultures in each of the sample Petri dishes. The results for the first 7 hours of observations are recorded in the chart below:
Bacterial Sample  Hour 1  Hour 2  Hour 3  Hour 4  Hour 5  Hour 6  Hour 7 
1  16  64  256  1024  4096  16,384  65,536 
2  97  291  873  2619  7857  23,571  70,713 
3  112  784  5488  38,416  268,912  1,882,384  13,176,688 
4  7  63  567  5103  45,927  413,343  3,720,087 
5  143  286  572  1144  2288  4576  9152 
Directions: Assuming that the growth pattern for each bacterial sample follows a geometric sequence, determine the following:
In a Microsoft Word document, prepare a report that includes answers to the following:
By Monday, February 8, 2016, submit your assignment to the M5: Assignment 1 Dropbox.
All written assignments and responses should follow APA rules for attributing sources.
Assignment 1 Grading Criteria 
Maximum Points

Determined the growth rate for each bacterial sample. 
64

Wrote a geometric sequence formula modeling the growth of each bacterial sample. 
64

Calculated the number of bacterial cultures after 8, 10, and 12 hours of observations for each sample. 
84

Calculated the total number of bacterial cultures observed after 24 hours for each sample. 
48

Determined which E. coli strain exhibited the highest growth rate. 
8

Determined which E. coli strain exhibited the lowest growth rate. 
8

Critically determined and explained, based upon information provided, which E. coli toxic strain would be the most manageable. 
8

Identified other factors that should be considered when modeling the growth of a bacterial culture. 
8

Investigated the growth rate, environmental conditions conducive to growth, and methods of controlling growth related to E. coli. 
8

Total: 
300
