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Chapter 1 The Microbial World and You Copyright 2010 Pearson Education Inc Lectures prepared by Christine L Case Q A Advertisements tell you that bacteria and viruses are all over your home and that you need to buy antibacterial cleaning products Should you Copyright 2010 Pearson Education Inc Microbes in Our Lives Learning Objectives 1 1 List several ways in which microbes affect our lives Copyright 2010 Pearson Education Inc Microbes in Our Lives Microorganisms are organisms that are too small to be seen with the unaided eye Germ refers to a rapidly growing cell Copyright 2010 Pearson Education Inc Microbes in Our Lives A few are pathogenic disease causing Decompose organic waste Are producers in the ecosystem by photosynthesis Produce industrial chemicals such as ethanol and acetone Produce fermented foods such as vinegar cheese and bread Produce products used in manufacturing e g cellulase and treatment e g insulin Copyright 2010 Pearson Education Inc Designer Jeans Made by Microbes Stone washing Trichoderma Cotton Gluconacetobacter Debleaching Mushroom peroxidase Indigo E coli Plastic Bacterial polyhydroxyalkanoate Copyright 2010 Pearson Education Inc Applications of Microbiology p 3 Microbes in Our Lives Knowledge of microorganisms Allows humans to Prevent food spoilage Prevent disease occurrence Led to aseptic techniques to prevent contamination in medicine and in microbiology laboratories Copyright 2010 Pearson Education Inc Check Your Understanding Check Your Understanding Describe some of the destructive and beneficial actions of microbes 1 1 Copyright 2010 Pearson Education Inc Naming and Classifying Microorganisms Learning Objectives 1 2 Recognize the system of scientific nomenclature that uses two names a genus and a specific epithet 1 3 Differentiate the major characteristics of each group of microorganisms 1 4 List the three domains Copyright 2010 Pearson Education Inc Naming and Classifying Microorganisms Linnaeus established the system of scientific



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