exclusion and removal of all cells in a liquid or gas‚ and is especially important to sterilize solutions which would be denatured by heat (antibiotics‚ injectable drugs‚ vitamins‚ etc.). 2. Boiling – at 100oC for 30 minutes kills almost all endospores. Very long or intermittent boiling is required to
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International Research Journal of Environment Sciences________________________________ ISSN 2319–1414 Vol. 2(2)‚ 48-52‚ February (2013) Int. Res. J. Environment Sci. Isolation‚ Characterization and Identification of Diesel Engine Oil Degrading Bacteria from Garage Soil and Comparison of their Bioremediation Potential Teli Nikhil1‚ Verma Deepa2‚ Gavankar Rohan1 and Bhalerao Satish3 1 Department of Biotechnology‚ Viva College‚ Virar (W)‚ Maharashtra‚ INDIA 2 Department of Botany‚ Viva College
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1. Title: Double unknown identification of a mixed culture of Gram-negative and Gram-positive bacteria 2. Author: Nick Fiore‚ University of Kansas‚ Biology 402‚ Fall 2014 3:00pm room 6040 3. Abstract: The purpose of this experiment was to isolate two unknown bacteria and perform a series of selective and differential tests to correctly identify each. After the bacteria was isolated a series of differential and selective tests following the dichotomous key attached were used to identify each bacteria
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Mary Gorton Microbiology Research paper Page 1 General defense mechanisms associated with the digestive system The gastrointestinal tract is a lymphoid organ‚ and the lymphoid tissue within it is collectively referred to as the gut-associated lymphoid tissue or GALT. The number of lymphocytes in the GALT is roughly equivalent to those in the spleen‚ and‚ based on location‚ these cells are distributed in three basic populations: 1. Peyer’s Patches: These are lymphoid follicles similar in many
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BIO 113 Spring 2012 - Dr. MJ Bernot Study Guide – Exam 2 Chapter 7- IS AT THE BOTTOM. Bernot wrote it so hopefully it is useful • Describe the structure of DNA and discuss how it facilitates the ability of DNA to act as genetic material • Compare and contrast prokaryotic and eukaryotic chromosomes • Describe the process of DNA replication as a semi-conservative process. Compare and contrast the synthesis of the leading and lagging strands in DNA replication. • Explain
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mechanisms whose transition states are more thermodynamically stable than uncatalyzed reactions (Berg et al.‚ 2002; UBC Department of Microbiology and Immunology‚ 2006). Increased thermodynamic stability in these transition states reduces the energy of activation‚ the minimum amount of energy input a chemical system requires for a reaction to occur (UBC Department of Microbiology and Immunology‚ 2006). Thus‚ substrate is converted to product using less energy at amplified rates when enzymes are involved
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1128/IAI.73.4.2184–2189.2005 Copyright © 2005‚ American Society for Microbiology. All Rights Reserved. Vol. 73‚ No. 4 Effect of B7-2 and CD40 Signals from Activated Antigen-Presenting Cells on the Ability of Zwitterionic Polysaccharides To Induce T-Cell Stimulation Tom Li Stephen‚1† Marcus Niemeyer‚2† Arthur O. Tzianabos‚2 Martin Kroenke‚1 Dennis L. Kasper‚2‚3 and Wiltrud M. Kalka-Moll1‚2‚4* Institute for Medical Microbiology‚ Immunology and Hygiene‚1 and First Department of Medicine‚4 University
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Kenneth Todar –AUTHOR Introduction to The Microbial World © 2009 Kenneth Todar PhD Figure 1. The bacterium‚ Legionella. American Society for Microbiology. The Microbial World The microbial world is a realm of life made up of microorganisms and viruses. Microbiology is the branch of biological sciences concerned with the study of these microbes. Microorganisms are unicellular organisms (capable of existence as single cells)‚ too small to be seen with the naked eye. Among all forms of
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as per usage. NEED FOR TESTING •To estimate the quality parameters •To standardize •To meet company standards •To adhere to customer requirements Gray Scales It is a scale graded up to ‘5’ used for evaluating change in color and staining. The specimens are manually evaluated on a 5-4-3-2-1 scale where class 5 means no shade change and class 1 means a very great shade change. An average of rating is taken as a result. Intermediate ratings like class like 3.5 or
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Nutritional Factors that Influence Microbial Growth To live/reproduce‚ all living things need: An energy source A source of Carbon Food Sunlight – phototroph Iron etc- chemotroph If reduced form of chemical‚ organism can use it as energy Organic-chemoorganotroph Inorganic – chemolithotroph Organic cmpds- heterotroph CO2- autotrophs Nitrogen fixation- make into organic form that humans can use N is often a limiting nutrient in the environment Meaning
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