Conclusion Lab Unit 06 – Quantification

Conclusion Lab Unit 06 – Quantification -...

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Conclusion Lab Unit 06 – Quantification Levine 1 Alexis Levine Maxwell T/R 28, February 2010 For this lab, we were given a series of tubes in which we were to gradually dilute to make the cell count less numerous. The first bacteria we had were Escherichia coli. After placing the diluted liquid from the tubes onto the agar we waited for it to harden and came back and examined the organisms the following class. On the first agar, the 10^-8 there was only five spots of bacteria so this plate was too few for counting. On the agar marked 10^-7 there were fifty-three spots of bacteria. Then we calculated whether the series of dilutions were correct or not by dividing fifty-three over 10^-7 and the multiplied fifty three times 10^7 and translated it into 5.3x10^8. Because there were eight tubes we diluted we did this lab correctly. On the 10^-6 agar we counted 381 which means it’s too numerous to count because you have to have between 30 and 300 (Sutton, 1999). The same thing with the 10^-5, it was too numerous to count. Almost everyone of
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This note was uploaded on 04/10/2011 for the course BIOLOGY 2300 taught by Professor Staff during the Fall '10 term at Georgia State University, Atlanta.

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Conclusion Lab Unit 06 – Quantification -...

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