Abstracts of lectures. Identification of cells prokaryotes and eukaryotes
The structure of prokaryotes: 1 shell - of the capsule of capsule shells and cell wall SPM (dependent on their tinctorial properties of the composition) 2- cytoplasmic inclusions, ribosomes 3- nucleoid 4- additional structures capsule, microcapsule, mucus, spores, flagella, cilia (drinking, pili, microvilli) Capsule shell- forming lipid, polysaccharide, relatively loosely associated with the cell surface can be released into the environment. Sometimes covered exopolysaccharides (carbohydrates), and glucans levans provide adhesion of bacteria to different surfaces, often smooth (streptococci, tooth enamel, heart valves) Capsules:macro and micro capsules were detected by the method of Hess-Ionne, easily separated from the cells by shaking Microcapsules in electron-microscopic study in the form of microfibrils of mucopolysaccharides, which are closely adjacent to the COP Macrocapsules- expressed under light microscopy slimy layer composed of polysaccharides and polypeptides of the rare Functions of capsules: 1-protective (against adverse environmental conditions, habitat phagocytes, toxins, bacteriophages, radiation, oxygen) 2 adhesive (promotes "sticking" to the surface (receptors) host cells 3 - some pathogenic 4 - some antigenic (Am against capsules cause its increase-quellung) 1-protective (against adverse environmental conditions, habitat phagocytes, toxins, bacteriophages, radiation, oxygen) 2 adhesive (promotes "sticking" to the surface (receptors) host cells 3 - some pathogenic 4 - some antigenic (Am against capsules cause its increase-quellung)
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