MCIM 224 Lecture Notes - Lecture 2: Mycobacterium Tuberculosis, Antimicrobial Resistance, Gram-Positive Bacteria
10 May 2016
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Document Summary
Tools used to observe & work with bacteria. How to obtain pure cultures of bacteria. Procaryote = cells without a true nucleus (genetic material not enclosed by a membrane) Eucaryote = cells with membrane-bound organelles (nucleus, etc) Similar in appearance to the bacteria domain, but differ in genetics, physiology, biochemistry. All bacteria can be categorized into related groups based on the number of characteristics (eg. appearance, structural features, metabolic & growth properties, etc. ) they have in common. Basic unit of bacterial taxonomy is the strain . A group of cells all descended from one parental cell (and thus all cells in the group are identical to each other in all properties) Species a group of strains that differ from each other by < 5% Genus a group of species that differ from each other by < 30% Similar strains are grouped into a species ; similar species are grouped into a.
