lecture 3 structure and growth

lecture 3 structure and growth - Some bacteria use reaction...

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Unformatted text preview: Some bacteria use reaction motors for gliding motility. Bioflms are macroscopic aggregations oF Bacteria/Archaea See section 4.6 FSU department of oceanography The two major challenges for microscopy: 1. Make little stuff look big. 2. Make what youre interested in stand out. Stains can make certain cells stand out. Paul James, Microscopy UK Phase-contrast microscopy uses differences in refractive index to make intracellular structures stand out. Fluorescence microscopy: certain molecules absorb light of one wavelength, and reradiate light of a longer wavelength. This can highlight whole cells or individual proteins or nucleic acids or... Roger Tsien, UCSD Piciorianu, Univ. Delft Confocal Laser Scanning Microscopy (CLSM) uses binocular vision to provide depth of Feld, and raster scanning to provide a three-dimensional image. It can be used over a wide range of scales. Transmission Electron Microscopy (TEM) uses e- instead of light; specimens must be Fxed , and thin. EM gives much higher resolution than light*. Scanning Electron Microscopy (SEM) looks at e- refected oFF oF metal-coated samples. oF metal-coated samples....
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lecture 3 structure and growth - Some bacteria use reaction...

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