Outline 1-2 - Introduction to Microbiology Why do we want...

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Introduction to Microbiology Why do we want to study Microbiology? Importance Uses: recycle essential nutrients, source of nutrients, nitrogen fixation, help produce food, beverages, antibiotics, and vitamins Harm: diseases What is Microbiology? Study of orgs too small to be clearly seen by the unaided eye, relatively simple in construction and lack highly differentiated cell and distinct tissues Exceptions: big bacteria, tiny bacteria How do the microorganisms arise? Pasteur’s experiment with the “S” shaped flask (Blow to Spontaneous generation) - Created flasks with long curved necks - Placed nutrients in flasks - Boiled and left exposed to the air - No growth What kind of organisms would have survived in Pasteur’s experiment? Heat resistant forms of bacteria. Relationship between microorganisms and diseases Koch’s Postulates 1. Microorg must be present in every case of the disease but absent from healthy individuals 2. Suspected microorg must be isolated and grown in a pure culture
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Outline 1-2 - Introduction to Microbiology Why do we want...

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