14+follow+ups+for+17+18+19

14+follow+ups+for+17+18+19 - Follow-ups: #17A: Effects of...

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Follow-ups: #17A: Effects of temp on bacterial survival • record effects of various temps on different microbes. • “0” is control area, shows how many bacteria you started with. Does amount of bacteria stay the same or decrease over the 9 minutes? • Expected results? Why? • Complete chart p 89
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#17B Effects of pH on Microbial Growth Do side-by-side comparison of the 4 different pH tubes for each organism get all 4 E. coli tubes resuspend bacteria by vortexing compare the turbidity of those 4 tubes Repeat for the Saccharomyces and Alcaligenes Decide as a bench side group the pH range and optimum pH for each organism Expected results? Which organism is an acidophile? Neutrophile? Alkalinophile? Complete table on page 94
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Compare covered vs. uncovered side of plate. Covered side shows how many bacteria you started with. Is there less bacteria on the uncovered side? Expected results?
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14+follow+ups+for+17+18+19 - Follow-ups: #17A: Effects of...

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