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| compound light microscope |
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Definition
| has a series of lenses and utilizes visible light as source of illumination |
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| any kind of microscope that uses visible light |
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| directs light rays through specimen |
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| objective lens magnification x ocular lens |
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| ability of lenses to distinguish fine detail |
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| measure of the light bending ability of a medium |
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| used for examining live microrganismsthat are invisible in natural light or can't be stained |
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| phase-contrast microscope |
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Definition
| permits detailed examination of internal structures |
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| Differential interference contrast microscopy |
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Definition
| 2 beams of light to observe refractive indexes |
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| ability of substances to absorb short wavelengths of light and give off light at a longer wavelength |
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| small region illuminated with a laser |
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| scanning acoustic microscopy |
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| interprets the action of a sound wave through a specimen |
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| beam of electrons used instead of light |
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| transsmission electron microscope |
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| directing beams of electrons to illuminate specimen |
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| scanning electron microscope |
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Definition
| provides 3d views of specimans |
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| scanned probe microscopes |
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Definition
| use of probes to observe cells |
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| scanning tunneling microscopy |
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Definition
| uses metal probe that scans a specimen and produces an image revealing bumps and depressions of the atoms on the surface |
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Definition
| metal and diamond probe forced down onto a specimen. as it moves it records movements into a 3d image |
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| coloring microorganisms with a dye that emphasizes certain structures |
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| thin film of material attached to a slide |
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| negative staining against |
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Definition
| preparing a colorless bacteria against a colored background |
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| aqueous stain or alcohol solution of a single basic dye |
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| a chemical added to a solution to intensify the stain |
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| distinguish different types of bacteria |
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| imparts color to all stains |
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| have contrasting colors to primary stains |
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| binds to bacteria that have waxy material in cell walls |
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| used to color and isolate endospores and flagella |
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| microorganisms that have a gelataneous covering |
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| the degree to which a pathogen can cause a disease |
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| resistant, dormant structure formed within a cell that protects bacterium from adverse environmental conditions |
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| structures of locomotion too small to be seen with a light microscope without staining |
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