CGS NS 201 Lecture Notes - Lecture 13: Otitis, Bacteriocin, Vitamin K
9 Aug 2018
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Document Summary
Organisms too small to be seen with the uaided eye. Production of industrial chemicals (ethanol and acetone) Production of fermented foods (vinegar, cheese and bread) Production of products used in manufacturing and treatment. A few pleomorphic, take different forms under different conditions (salty) Include: methanogens, extreme halophiles (extremely salty conditions, extreme thermophiles (hot conditions) Complex matrix formed at certain cell densities. Difficulties in treatment of disease: ear infections, urinary. Bacteria recycle carbon, nutrients, sulfur and phosphorus that can be used by plants and animals. Bioremediation: bacteria degrade organic matter in sewage; degrade or detoxify pollutants such as oil and mercury. Digestion: bacteria in the gut aid in digestion e. g. cellulose. Primary producers: photosynthesis (bottom of energy pyramid) >99% of bacteria from enviroemtn not yet grown in the lab. Term microflora has been replaced by microbiota. Microbes that are normally present in and on the human body.
