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- SlideBoom
- SlideBoom

... 25. Distinguish between exotoxins and endotoxins.  Exotoxins  proteins secreted by bacterial cells - can cause disease without the organism being present - these are among the most potent poisons (example: botulism & cholera) ...
Bacteria Notes
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... D. Ways Bacteria Cause Disease: 1. Produce exotoxins (toxins made of protein and produced by Gram-positive bacteria). 2. Produce endotoxins (toxins made of carbohydrates and lipids and produced by Gram-negative bacteria; released when bacteria die). 3. Destroy body tissues by secreting digestive en ...
Diagnostic Medical Microbiology & Clinical Correlation
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Taxonomy - Bosna Sema
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... The scientific study of the diversity of organisms and their evolutionary relationship is called systematic. An important aspect of systematic is taxonomy, the science of naming describing and classifying organisms. The term classification means ordering organisms into group based on their similarit ...
3.1 Bacteria and viruses flashcards
3.1 Bacteria and viruses flashcards

... Bacteria and Viruses Flashcards 38) Name the three basic shapes of Gram positive and Gram negative bacteria 39) Name the bacterium that causes food poisoning and typhoid fever 40) Name the bacterium that causes the most common sexually transmitted disease in the United ...
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Biorefinery Theme 2: Cellulose, new cellulose materials
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“Ne`er the Twain Shall Meet” and Other Great Lies
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... • In sheer numbers, microbes outnumber humans on earth a billion trillion to one. • Generation times are generally very short in bacteria, allowing for extremely rapid evolution and ...
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REQUEST FOR MICROORGANISM ENDORSEMENT REQUIRED
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... below. The following organisms (bacteria and fungi) are recommended for use by students doing science projects. These organisms are not pathogenic to plants or humans. Likewise, archaebacteria, cyanobacteria, lichens and slime molds in pure culture that are available from biological supply houses to ...
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Some Diseases Caused by Bacteria

... The structure of prokaryotes is rather simple when compared with cells of higher organisms. The cell wall, constructed largely of peptidoglycan, gives structure to the cell. It is very different from the cell wall of various eukaryotes. Classification placed them with plants in the antiquated 2-king ...
Bacteria: Part II
Bacteria: Part II

... chemical production . 6) Bacteria have been used in environmental cleanup. Certain bacteria can also clean up hazardous chemicals and oil spills in the environment by converting the chemicals into other harmless, or less toxic compounds. This process is called bioremediation. ...
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... trophic levels, nutrient levels, relative productiveness) Why are upwelling zones so productive in terms of phytoplankton? Describe the three reasons why upwelling zones have lower total plant production, but the highest fish production (size of phytoplankton, number of trophic levels, food capture ...
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Phospholipid-derived fatty acids



Phospholipid-derived fatty acids (PLFA) are widely used in microbial ecology as chemotaxonomic markers of bacteria and other organisms. Phospholipids are the primary lipids composing cellular membranes. Phospholipids can be saponified, which releases the fatty acids contained in their diglyceride tail. Once the phospholipids of an unknown sample are saponified, the composition of the resulting PLFA can be compared to the PLFA of known organisms to determine the identity of the sample organism. PLFA analysis may be combined with other techniques, such as stable isotope probing to determine which microbes are metabolically active in a sample. PLFA analysis was pioneered by D.C. White, MD, PhD, at the University of Tennessee, in the early to mid 1980s.
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