Microbio ch13
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Define: fomite, (do not have to know specifics) | show 🗑
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| BSL | show 🗑
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| show | Destruction of all microbial life (includes viruses)
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| disinfection | show 🗑
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| show | Lower microbial counts to safe levels/ usually in commercial establishments/ This is done by high temperature washing & dipping in a disinfectant
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| show | Removing microbes from living tissue (antiseptics used for this, usually with chemicals)
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| Understand antisepsis and DEGERMING. | show 🗑
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| show | Used inside the body or penetrate tissues/blood// Must be sterile
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| show | Contact mucous membranes of unbroken skin/ High level disinfection, no sterilization
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| What are non-critical items and which protocol is used for each? | show 🗑
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| Understand the four factors to consider when choosing a method of controlling microbial growth. | show 🗑
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| show | Kills by oxidation effects: flaming, incineration, hot-air sterilization
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| Understand heat methods, including, moist heat/autoclaves | show 🗑
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| show | Eliminates pathogens and lower microbial numbers to prolong life of product/ Ex: Classical 63ºC,30min//HTST 72ºC,17min//UHT Sterilizes milk
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| show | Effect how temps are depending on kind of bacteria or microbe/ Psychrophiles continue to grow/ Bacteria may go dormant/ Some bacteria preserved by freezing, others killed (EX: Eukaryotic)
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| Understand pressure | show 🗑
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| show | Ionizing & non-ionizing radiation
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| show | HEPA filters remove microbes, endospores, and viruses Membrane filtration removes bacteria from liquids (that cannot be autoclaved)
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| Know the examples of chemical methods of microbial control: phenols and phenolics, pt1 | show 🗑
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| show | Cresols: from coal tar, in Lysol/ Bisphenols: Hexachlorophene is good for Gram + bacteria & Triclosan- in soaps, toothpastes, sheets, etc. Good against Gram + and - bacteria
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| show | Oligodynamic action-Very small amounts exert antimicrobial activity/ Denature proteins/ AG,Hg,Cu,Zn
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| Know the examples of chemical methods of microbial control: heavy metals, pt2 | show 🗑
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| show | Tincture: solution in aqueous alcohol/ Iodophor: combines with organic molecules(betadine)/ Oxidizes cellular components
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| Know the examples of chemical methods of microbial control: chlorine | show 🗑
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| show | Most common: ethanol, isopropanol/ Disrupts membranes/ kill bacteria and fungi, but not endospores or non-enveloped viruses/ Degerming
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| Know the examples of chemical methods of microbial control: surfactants | show 🗑
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| Know the examples of chemical methods of microbial control: quats | show 🗑
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| Know the examples of chemical methods of microbial control: bisbiguanides | show 🗑
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| Know the examples of chemical methods of microbial control: alkylating agents | show 🗑
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| Know the examples of chemical methods of microbial control: peroxygens | show 🗑
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| show | Compressed state/ CO2 at 10x atmospheric pressure/ Sterilizes/ Enters cell, forms carbonic acid, lowers pH (Works with vegetative cells & endospores together with peracetic acid)/ Food, medical devices, tissues
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| show | spread a place with bacteria/ place filter disks soaked in diff disinfectants on top/ incubate/ determine lawn grows/ extent
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| show | Provides a minimum inhibitory concentration (MIC)
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| Understand the disk-diffusion method, e-test, use-dilution test, and in-use test. | show 🗑
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| Understand the disk-diffusion method, e-test, use-dilution test, and in-use test. | show 🗑
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| show | Solute concentration is higher than that inside the cell. Water flows out of cell and into the surrounding solution
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Clinton Perdue
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