Effect of pH on Bacterial Growth

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Last updated 12:30 AM on 6/25/26
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9 Terms

1
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What is an acidic pH?

  • less than 7

2
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What is a base/alkaline pH?

  • greater than 7

3
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What is a neutral solution of pH?

  • =7

4
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What pH range is an acidophile?

  • optimum pH below 5.5

5
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What pH range is a neutrophile?

  • optimum pH near 7

6
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What pH range is an alkalinophile?

  • optimum pH above 8.0

7
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Given a bacterial growth curve based on pH, be able to determine the optimum pH and how the bacteria would be classified as per the last bullet point

  • Look at the graph

8
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Which bacteria used in lab was the acidophile?

  • Acetobacter aceti

9
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Which bacteria used in lab was the neutrophile?

  • Escherichia coli (E.coli)