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Microbiology Lab

by: Loyce Ryan

Microbiology Lab Bio 225

Loyce Ryan
GPA 3.87
David Little

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About this Document

David Little
Class Notes
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Popular in microbiology

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This 1 page Class Notes was uploaded by Loyce Ryan on Thursday October 22, 2015. The Class Notes belongs to Bio 225 at Tri-County Technical College taught by David Little in Summer 2015. Since its upload, it has received 17 views. For similar materials see microbiology in Biology at Tri-County Technical College.


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Date Created: 10/22/15
QJ QJ QJ QJ QJ QJ QJ QJ QJ J J J J J J J J J QJ QJ QJ QJ QJ QJ QJ J J J J J J J QJ QJ QJ QJ J J J J QJ QJ QJ QJ QJ QJ QJ QJ QJ J J J J J J J J J Classify microbes into 5 groups on the basis of preferred temperature range ndentify how and why the pH of culture media is controlled Explain the importance of osmotic pressure to microbial growth Name a use for each of the 4 elements needed in large amounts for microbial growth Explain how microbes are classified on the basis of oxygen requirements Identify ways in which aerobes avoid damage by toxic forms of oxygen Describe the formation of biofilms and their potential for causing infection Distinguish chemically defined and complex media Justify the use of each of the following anaerobic techniques living host cells candle jars selective and differential media and enrichment medium Differentiate biosafety levels 123amp4 Define colony Describe how pure cultures can be isolated by using the streak plate method Explain how microorganisms are preserved by deepfreezing and lyophilization freezedrying Define bacterial growth including binary fission Compare the phases of microbial growth and describe their relation to generation time Define sterilization disinfection antisepsis degerming sanitization biocide germicide bacteriostasis amp asepsis Describe the patterns of microbial death caused by treatments with microbial control agents Describe the effects of microbial control agents on cellular structures Compare the effectiveness of moist heat boiling autoclaving pasteurization and dry heat Describe how filtration low temps high pressure desiccation amp osmotic pressure suppress microbial growth Explain how radiation kills cells List the factors related to effective disinfection Interpret the results of usedilution tests and the diskdiffusion method Identify the methods of action and preferred uses of chemical disinfectants Differentiate halogens used as antiseptics from halogens used as disinfectants Identify the appropriate uses for surfaceactive agents List the advantages of glutaraldehyde over other chemical disinfectants Identify chemical sterilizers Explain how the type of microbe affects the control of microbial growth


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