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Sunday, December 29, 2013

All about Bacteria.

Notes Bacteria be broken, single stallular telephones and are the only ones characterized by prokaryotic organization. Too tiny to see with the bare eye, a bacterial kiosk is usually one of 3 basic shapes; bacillus, a rod shaped cell; coccus, a spherical cell; or spirillum, a spiral cell. A few kinds of bacteria aggregate into stalked structures or filaments. A bacterias plasma membrane is case within a cell smother. Members of the kingdom Eubacteria give way a cell protect made of peptidoglycan, a vane of polysaccharide molecules cerebrate together with kitchen stoves of amino acids. somewhat eubacteria learn a cell wall cover with an out membrane layer made of large molecules called lipopolysaccharides. A lipopolysaccharide is a chain of sugar molecules with a lipid wedded to one end. outside(a) of the cell wall and membrane, many bacteria have a gelatinous layer called a capsule. Eubacteria are sort out advertisement by differences in their cell walls. A ba cterium with a cell wall containing a large hail of peptidoglycan is classified as gram-positive. A bacterium with a cell wall containing a thin layer of peptidoglycan covered by an outer(a) membrane is classified as gram-negative. These terms refer to a bacteriums reaction to a staining procedure developed by the Danish microbiologist Hans Gram.
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Some bacteria form thick-walled endospores around their chromosomes and a small bit of cytoplasm when they are exposed to sharp conditions much(prenominal) as drought or high temperatures. The formation of endospores in the bacterium Clostridium botulinum is responsible f or botulism, a ailment often considered to! be a form of food poisoning. Bacteria, which total all eukaryotes combined, differ from eukaryotes in at least sevener important respects. 1.Internal compartmentalizationBacteria are prokaryotes and lack a cell nucleus, contrary eukaryotes. The cytoplasm of bacteria has very little internal organization. It contains no internal compartments or membrane systems. 2.Cell... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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