Term
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Definition
1-5.5
Fermenting bac. produces acids as biproducts of carb metabolism (food spoilage) |
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Term
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Definition
5.5-8
Most bac, including pathogens |
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Term
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Definition
8.5-11.5
Putrefying bac degrade proteins to amines and ammonia increasing pH |
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Term
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Definition
| Capable of persisting in acidic conditions, but not an increase in cell number |
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Term
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Definition
| addition of acids like vinegar |
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Term
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Definition
| production of acids as a result of fermentation of carbs |
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Term
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Definition
| Require NaCl ions in order to grow (>15%) |
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Term
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Definition
| Can live in saline conditions and grow but do not reproduce (>10% but <15%) |
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Term
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Definition
Thrive in high sugar concentrations (>50%)
Often yeasts and molds. |
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Term
| UV Damage Repair: Photoreactivation |
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Definition
- Light activated enzymes split up covalent bonds formed between two adjacent thymines and allow hydrogen bonds to the complementary adenines to reform
- Only works when damage is not severe.
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Term
| UV DAMAGE REPAIR: DARK (Excision Repair) |
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Definition
- Endonuclease exercise fragment with mutation
- DNA polymerase and DNA ligase repair nick
- Works for more severely damaged DNA
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