PDF-MICROBIAL AGENTS

QuorumSensing Signal Disperses Bacteria from BiofilmsBiofilms are complex bacterial communities that range from bioluminescent pools in oceans to plaque buildup on teeth These communities use quorum. corticosterone. Two microbe strains were more commonly found in nests gathered at the rural site.. . Background. Discussion. Results. Methods. Acknowledgements. Correlations between nest commensal species, nestling health and hormones in the Eastern bluebird, . A. Metabolism. 1. Anabolism. A) synthesis reactions (building up). 2. Catabolism. A) lysis reactions (breaking down). B. Enzymes. 1. proteins that facilitate chemical reactions. Microbial Metabolism. Microbial food spoilage occurs as a consequence of either microbial growth in a food or release of extracellular and intracellular(following cell . lysis. ) . enzymes in the food environment.. Signs of spoilage of different types of food:. Eric J. Raes, P.E. ., LSRP. Engineering and Land Planning . Dora Ogles, Brett Baldwin, Kate Clark & . Anita Biernacki. Microbial Insights Inc.. Kerry Sublette, Ph.D., Kate Key. University of Tulsa. THE ORIGIN AND EVOLUTION OF MICROBIAL LIFE. HOW DID LIFE ORIGINATE?. SPONTANEOUS GENERATION. LIFE ARISING FROM NON-LIVING MATTER. LONG BELIEVED AS THE ACCEPTED EXPLANATION OF ORIGINATION OF LIFE. EXPERIMENTS EVENTUALLY SHOWED IT TO BE IMPOSSIBLE. A. Metabolism. 1. Anabolism. A) synthesis reactions (building up). 2. Catabolism. A) lysis reactions (breaking down). B. Enzymes. 1. proteins that facilitate chemical reactions. Microbial Metabolism. A. Structure of DNA. 1. discovered by James Watson and Francis Crick in 1953. 2. stores genetic information for the production of proteins. 3. composed of nucleotides. A) a nucleotide is composed of a nitrogenous base, sugar, and phosphate. . Definitions. Indigenous . flora. microorganisms . native or belonging naturally to a region.. Colonization. establishment . of a site of reproduction of microbes on a person without necessarily resulting in tissue invasion or . In the Environment. Table 9.1 Terminology of Microbial Control. Figure 9.1 A plot of microbial death rate.. Basic Principles of Microbial Control. Action of Antimicrobial Agents. Alteration of cell walls and membranes. Blair Bean. Grade 9. Pittsburgh Central Catholic . Highschool. Variety of organisms that live in and on the body. Skin. Gastrointestinal tracts. Nose. Pharynx. Mouth. Conjunctiva. Provide moisture, nourishment, and a stable pH for body to properly function. Microbiology. Microbial Growth. Microbial requirements for growth:. 1. . Physical. A. . Temperature. Optimal growth temperature. Permissible range. human pathogens optimal = . 37°C. Microbial Growth. Elizabeth Golden. EBIO 4100, Winter Ecology, Spring 2013. Mountain Research Station, University of Colorado, Boulder. Introduction. Snow pack. Provides insulation . (Halfpenny and . Ozanne. 1989). . 1. . Discovered . by James Watson and Francis Crick . in 1953. 2. . Stores . genetic information for the production of proteins. 3. . Composed . of nucleotides. A) . A . nucleotide is composed of a nitrogenous base, . Microbiology. Outline. Microbial growth . in . natural environments. . Measurement . of . microbial population size. Principles of . microbial control. . Physical, chemical and biological control.