A standard plate count of a culture of E. Coli has 175 colonies on the plate...
Homework Answers
The label 10-6 means that the original culture has been diluted 106 times.
Since volume is not specified in the question it can be assumed that the volume of culture used to spread on the plate is 1 ml ( so that we can get the answer in CFU/ml). (CFU- colony forming units)
There are 175 colonies in 1 ml of culture that is been diluted
106 times.
This means the original culture will have 106 times the
number of microbes (CFUs) in the diluted culture
So the original cell density is 175 X 106 = 1.75 X 108 CFU/ml
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standard plate count of a culture of E. Coli has 175 colonies on
the plate...
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You are presented with the following results for a Standard Plate Count (SPC). What was the...
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You are presented with the following results for a Standard
Plate Count (SPC). What was the original starting concentration of
the culture?
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may you help me figure out how to solve 7-9
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