Problem
I. How can pH levels that are outside of an organism's survival range negatively affect an organism?
II. Use the following chart of growth in media with different pH to determine if an organism is an acidophile, neutrophile, or alkalinophile (or alkaliphile)
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Organism
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pH 3
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pH 7
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pH 10
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Classification
|
|
Organism 1
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Growth
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No growth
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No growth
|
|
|
Organism 2
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No growth
|
No growth
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Growth
|
|
|
Organism 3
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No growth
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Growth
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No growth
|
|
III. For the following three types of solutions, hypertonic, isotonic, and hypertonic solutions, describe where the higher solute concentration is (inside or outside of the cell) and describe the effect of that solution on a typical bacterial cell.