Match description of the different chemical methods of microbial control on the left to its term on the right. surfactants, emulsify and solubilize particles clinging to a surface [ Choose ] used in mouthwash and toothpastes, destroys bacterial cells by disrupting cell membrane [ Choose ] proteins produced by one bacterium that inhibits another [ Choose ] CO2 with gaseous and liquid properties, used to sterilize medical implants [ Choose ] phenol nitrates supercritical fluid triclosan quat heavy metal bacteriocin soap chlorhexidine
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Match the terms with the definitions: A. Sterilization B. Disinfection C. antisepsis D. sanitization E. degerming F. commercial sterilization 1. mechanical removal of microbes from an area. 2. Destruction of all form of microbes including endospores. 3. Destruction of harmful microbes from an inanimate object. 4. Lowering the microbial count to a safe level. 5. Destruction of C. botulinum endospores. 6. Destruction of harmful microbes from a living tissue. 7.Compare autoclaving and hot air sterilization What form of heat is used (moist / dry) Temperature -time required for sterilization Uses 8.Write an example of chemical sterilant and its use. 9. How does filtration achieve sterilization? Examples of products that are filter sterilized.
Dr. Anas S.
Match each statement with its term:
Shyamal K.
7-1 Define the following key terms related to microbial control: sterilization, disinfection, antisepsis, degerming, sanitization, biocide, germicide, bacteriostasis, and asepsis. 7-2 Describe the patterns of microbial death caused by treatments with microbial control agents. 7-3 Describe the effects of microbial control agents on cellular structures. 7-4 Compare the effectiveness of moist heat (boiling, autoclaving, pasteurization) and dry heat. 7-5 Describe how filtration, low temperatures, high pressure, desiccation, and osmotic pressure suppress microbial growth. 7-6 Explain how radiation kills cells. 7-7 List the factors related to effective disinfection. 7-8 Interpret the results of use-dilution tests and the disk-diffusion method. 7-9 Identify the methods of action and preferred uses of chemical disinfectants. 7-10 Differentiate halogens used as antiseptics from halogens used as disinfectants. 7-11 Identify the appropriate uses for surface-active agents. 7-12 List the advantages of glutaraldehyde over other chemical disinfectants.
Madhur L.
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