Topic: What Are Bacterial Capsules
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What is bacterial capsule?
( bak′tir·ē·əl ′kap·səl ) (microbiology) A thick, mucous envelope, composed of polypeptides or carbohydrates, surrounding some bacteria. Read More »
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What is the chemical composition of bacterial capsules?
Bacterial capsules consist of a layer of polysaccharides and small proteins. Read More »
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Why is bacterial capsule medically important?
It gives encapsulated bacteria a potential advantage over the body's immune cells (impairs phagocytosis). Outside the body, it gives the bacteria increased protection against the environment, so they might stick around on surfaces longer, o... Read More »
Source: http://wiki.answers.com/Q/Why_is_bacterial_capsule_medically_impo...
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What Are Bacterial Capsules
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An envelope of loose gel surrounding a bacterial cell which is associated with the virulence of pathogenic bacteria. (MORE?)
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The slime capsule keeps the organelles inside the cell....i think :p
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increased resistance to phagocytosis by wbc.
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The cell capsule is a very large organelle of some bacterial cells. It is a layer that lies outside the cell wall of bacteria. It is a well organized layer, not easily washed off, and it can be the cause of various diseases.
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The organisms are stained with fluorochromes, and when exposed to ultraviolet, violet, or blue light they become a bright image resulting from the fluorescent light emitted by them. This exposes the capsule.
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Heat will cause the capsule to shrink, making it look like there isn't one. Conversely, heat may cause a bacterial cell to shrink, making a clear zone around the cell, effectively making a cell appear to have a capsule when it doesn't.
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Source: http://wiki.answers.com/Q/Why_is_heat-fixing_omitted_during_stain...
