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intro-2 - CH 1 INTRODUCTION 1 DEFINITIONS A Microbiology...

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CH. 1 INTRODUCTION 1. DEFINITIONS A. Microbiology - study of microscopic organisms. B. Microorganisms included : 1. Bacteria - simple, single cell 2. Fungi - single & multi cell forms - yeast, filamentous molds, complex fungi 3. Protists - single cell, some multicellular - algae, protozoans, slime molds 4. Viruses - acellular, intracellular parasites 5. Worms - multicellular, more complex 2. DIVISIONS OF MICROBIOLOGY A. Organisms studied 1. Bacteriology – study of bacteria 2. Mycology – study of fungi 3. Phycology - study of algae 4. Protozoology – study of protozoa 5. Virology - study of viruses 6. Parasitology – study of parasites B. Health related 1. Etiology – identification of causative agent of disease 2. Epidemiology – study of spread , of disease 3. Immunology – study of immune system 4. Chemotherapy – treatment of disease with chemical compounds 5. Infection control – control of spread of infectious disease C. Processes, Functions 1. Microbial metabolism 2. Microbial genetics 3. Microbial ecology
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3. BENEFICIAL APPLICATIONS (WHY STUDY MICROBIOLOGY ?) A. Causative agents of infectious diseases B. Normal flora 1. Beneficial metabolic functions 2. Antagonistic effect - prevents invasion pathogens, over growth of potential pathogens 3. Normal flora vs. identification pathogen C. Environmental importance 1. Decomposers 2.
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