Term
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Definition
| complete removal of all living microbes |
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Term
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Definition
| removal of vegitative cells |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Stops growth but does not kill |
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Term
| What increases chemical effectiveness? |
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Definition
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Term
| 3 considerations when choosing a microbial control method? |
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Definition
| Will it affect non microbial agents; is it effective against target microbes; how much will it cost |
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Term
| Heat method of action; how does this destroy microbes? |
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Definition
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Term
| Why use an autoclave with steam @ 121 C (2atm) instead of boiling? |
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Definition
| Endospores can survive boiling. |
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Term
| What type of dry heat kills by oxidation? |
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Definition
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Term
| Hot water is used over hot air because hot air requires _________________. |
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Definition
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Term
| Pasteurization uses rapid heat then cold in order to ______________. |
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Definition
| preserve flavor, and decrease microbial load. |
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Term
| Cold method of action; biocidal or biostatic? |
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Definition
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Term
| Water filtration systems do not filter out _______? |
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Definition
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Term
| Desiccation-also known as drying uses what method of action |
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Definition
| ARRESTS METABOLISM/ CELL LYSIS |
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Term
| Osmotic pressure uses what method of action? |
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Definition
| ARRESTS METABOLISM/ CELL LYSIS |
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Term
| Radiation method of action? |
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Definition
| DNA Damage, DNA can't figure out how to replicate. |
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Term
| Ionizing high energy radiation forms _____________. |
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Definition
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Term
| Chemical control methods rarely sterilizes; instead it's used for? |
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Definition
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Term
| Phenol is commonly used for? |
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Definition
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Term
| Chemical method of action? |
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Definition
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Term
| Triclosan also known as microban is said to be used as a ____________? |
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Definition
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Term
| Halogen method of action? |
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Definition
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Term
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Definition
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Term
| Why are antibacterials being blamed for selective resistance? |
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Definition
| They kill weaker bacteria and this only leaves the stronger bacteria to reprouce |
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Term
| Alcohols method of action? |
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Definition
| Denatures proteins; Dissolves lipids |
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Term
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Definition
| disinfectant, decontaminant, antiseptic (not for wounds) |
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Term
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Definition
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Term
| Quaternary ammonium method of action? |
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Definition
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Term
| Surprisingly, some microbes can grow in _______ solutions. |
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Definition
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Term
| Gas sterilizers (epoxides) method of action? |
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Definition
Protein denaturation
(reactivity) |
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Term
| Used on medical equipment and spacecraft because it can sterilize without heat and it penetrates. |
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Definition
| Gas sterilizers (epoxides) |
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Term
| Disadvantages of epoxides? |
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Definition
| Flammability and long exposure times. |
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Term
| Peroxygens method of action? |
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Definition
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Term
| Why does H2O2 (hydrogen peroxide make a lousy antiseptic? |
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Definition
| It is quickly broken down to water and gaseous oxygen by the action of the enzyme catalase, which is present in human cells. |
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Term
| These two are extremely resistant to many treatments? |
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Definition
| Mycobacteria and endospores. |
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Term
| Resistant due to a highly stable protein fold? |
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Definition
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Term
| These where built to survive the extremes and may be dormant for long periods of time? |
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Definition
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Term
| These resistant bacteria have a waxy, lipid rich cell wall. |
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Definition
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