UWL MIC 230 - How Cells Got Discovered (3 pages)

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How Cells Got Discovered



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How Cells Got Discovered

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Lecture 3; Goes over people who lead to the discovery of cells and microorganisms, taxonomy, and the classification of prokaryotes.


Lecture number:
3
Pages:
3
Type:
Lecture Note
School:
University of Wisconsin-La Crosse
Course:
Mic 230 - Fundamentals of Microbiology

Unformatted text preview:

MIC 230 1st Edition Lecture 3 Outline of Last Lecture I Continuation of the History of Microbiology II The Two Functions Life Requires III Porphyrin Ring Outline of Current Lecture IV Theory of Endosymbiosis V Important Founders of Microbiology VI Taxonomy VII Classification of Prokaryotes Current Lecture Theory of Endosymbiosis At some point a nucleated cell engulfed another cell and lived together and over time the endosymbiote devolved to become an organelle no longer an independent organism Lines of Evidence 1 Mitochondria and chloroplasts have their own DNA circular 2 Mitochondria and chloroplasts have their own ribosomes 70 s not 80 s 3 Mitochondria and chloroplasts have ribosomal RNA who s sequence is closely related to bacterial rRNA Robert Hooke 1665 Saw cells Anton Von Leeuwenhoek Father of Biology 1860 s Great at grinding lenses Saw and PUBLISHED bacteria Louis Pasteur 1860 s These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Disproved spontaneous generation Swan neck flask Know the process of this experiment There is a slide on it Development of electron microscope EM 1950 s Lead to the prokaryotes vs eukaryote delineation Functional group eukaryotes have a nucleus and organelles Prokaryotes do not Taxonomy science of naming and classification identification Traditionally phenotypic Phylogeny based on evolutionary relationships of natural history Fossils Molecular assumption is the evolution of molecule evolution of organism Carl Woese proposed 3 domains of life Bacteria archaea and eukarya Prokaryotes functional group are bacteria and archaea domain names Eukaryotes functional group are eukarya domain name Classification of Prokaryotes Traditional taxonomy phenotypic Binomial nomenclature 2 names Genus and specific epithet species name Morphology Shape Coccus cocci look circular Rod bacillus bacilli Spirillum spiralla Vibrio look like a comma Spirochete



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