Mary then wanted to calculate the CFU/g of the microbes to determine their amount. She used spread plating to plate tubes 3 and 4. The table below shows the counts that she obtained after incubation. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures Tube 3 215,209 Tube 4 27,21

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Mary then wanted to calculate the CFU/g of the microbes to determine their amount. She used
spread plating to plate tubes 3 and 4. The table below shows the counts that she obtained after
incubation. Compute for the CFU/g given the data below. Be sure to show complete solutions
and box your final answer. Final answers should be expressed in 3 significant figures
Tube 3
215, 209
Tube 4
27,21
Transcribed Image Text:Mary then wanted to calculate the CFU/g of the microbes to determine their amount. She used spread plating to plate tubes 3 and 4. The table below shows the counts that she obtained after incubation. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures Tube 3 215, 209 Tube 4 27,21
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Joseph, being a know-it-all, told Mary that her method would not include all microbes. To
demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1-
week incubation time, he performed the same serial dilution scheme as Mary but used pour
plating instead of spread plating. Shown below are the counts that he obtained after the
incubation period. Compute for the CFU/g given the data below. Be sure to show complete
solutions and box your final answer. Final answers should be expressed in 3 significant figures.
Tube 1
135, 129
Tube 2
9.7
Transcribed Image Text:Joseph, being a know-it-all, told Mary that her method would not include all microbes. To demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1- week incubation time, he performed the same serial dilution scheme as Mary but used pour plating instead of spread plating. Shown below are the counts that he obtained after the incubation period. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures. Tube 1 135, 129 Tube 2 9.7
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