Term
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Definition
-"acid-loving" organisms
-can exist from pH 0.0 to 5.4
-i.e. Lactobacillus bacteria produces lactic acid that tolerates mild acidity |
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Term
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Definition
-microbes that can exist in pH from 5.4 to 8.5
-causative agent for the majority of diseases in humans |
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Term
| Alkalinophile (Basophile) |
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Definition
-"base-loving" orgs
-can exist from pH 7.0 to 11.5
-i.e. Vibrio cholerae grows best at pH 9
-i.e. Agrobacterium (in soil) grows at pH 12 |
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Term
Temperature and pH category that most human pathogens are found?
Why? |
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Definition
-mesophiles (20C - 45C)
-neutrophiles (pH 5.4 to 8.5)
-because the body's temp is at ~37C and a pH that is about neutral and orgs can achieve optimum growth |
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