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43 Cards in this Set
- Front
- Back
COMPOUND LIGHT MICROSCOPE
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AN INSTRUMENT WITH TWO SETS OF LENSES THAT USES VISIBLE LIGHT AS A SOURCE OF ILLUMINATION
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MICROMETER
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A UNIT OF MEASUREMENT EQUAL TO 1026m
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FLUORESCENCE
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THE ABILITY OF A SUBSTANCE TO GIVE OFF LIGHT OF ONE COLOR WHEN EXPOSED TO THE LIGHT OF ANOTHER COLOR
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FLAGELLUM (pl. FLAGELLA)
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A THIN APPENDAGE FROM THE SURFACE OF A CELL; USED FOR CELLULAR LOCOMOTION; COMPOSED OF FLAGELLIN IN PROKARYOTIC CELLS, COMPOSED OF NINE PAIRS PLUS TWO MICROTUBULES IN EUKARYOTIC CELLS
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CONDENSER
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A LENSE SYSTEM LOCATED BELOW THE MICROSCOPE STAGE THAT DIRECTS LIGHT RAYS THROUGH THE SPECIMEN
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ENDOSPORE
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A RESTING STRUCTURE FORMED INSIDE SOME BACTERIA
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OBJECTIVE LENSES
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IN A COMPOUND LIGHT MICROSCOPE, THE LENSES CLOSEST TO THE SPECIMEN
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SCANNING ELECTRON MICROSCOPE (SEM)
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AN ELECTRON MICROSCOPE THAT PROVIDES THREE-DIMENSIONAL VIEWS OF THE SPECIMEN MAGNIFIED 1,000 - 10,000x
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COUNTERSTAIN
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A SECOND STAIN APPLIED TO A SMEAR, PROVIDES CONTRAST TO THE PRIMARY STAIN
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GRAM-POSITIVE BACTERIA
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BACTERIA THAT RETAIN THE CRYSTAL VIOLET COLOR, AFTER DECOLORIZING WITH ALCOHOL; THEY STAIN DARK PURPLE
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RESOLUTION
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THE ABILITY TO DISTINGUISH FINE DETAIL WITH A MAGNIFYING INSTRUMENT; ALSO CALLED RESOLVING POWER
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ACIDIC DYE
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A SALT IN WHICH THE COLOR IS IN THE NEGATIVE ION; USED FOR NEGATIVE STAINING
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TRANSMISSION ELECTRON MICROSCOPE (TEM)
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AN ELECTRON MICROSCOPE THAT PROVIDES HIGH MAGNIFICATIONS(10,000-100,000x)OF THIN SECTIONS OF A SPECIMEN
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FIXING
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(1) IN SLIDE PREPARATION, THE PROCESS OF ATTACHING A SPECIMEN TO A SLIDE (2)REGARDING CHEMICAL ELEMENTS, COMBINING ELEMENTS SO THAT A CRITICAL ELEMENT CAN ENTER THE FOOD CHAIN
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NANOMETER (nm)
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A MEASUREMENT EQUAL TO 1029m, 1023mm
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BRIGHTFIELD MICROSCOPE
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A MICROSCOPE THAT USES VISIBLE LIGHT FOR ILLUMINATION; THE SPECIMENS ARE VIEWED AGAINST A WHITE BACKGROUND
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FLUORESCENCE MICROSCOPE
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A MICROSCOPE THAT USES AN ULTRAVIOLET LIGHT SOURCE TO ILLUMINATE SPECIMENS THAT WILL FLUORESCE
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PHASE-CONTRAST MICROSCOPE
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A COMPOUND LIGHT MICROSCOPE THAT ALLOWS EXAMINATION OF STRUCTURES INSIDE CELLS THROUGH THE USE OF A SPECIAL CONDENSER
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BASIC DYE
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A SALT THAT THE COLOR IS IN THE POSITIVE ION; USED FOR BACTERIAL STAINS
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NEGATIVE STAINING
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A PROCEDURE THAT RESULTS IN COLORLESS BACTERIA AGAINST A STAINED BACKGROUND
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DIFFERENTIAL INTERFERENCE CONTRAST (DIC) MICROSCOPE
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AN INSTRUMENT THAT PROVIDES A THREE-DIMENSIONAL, MAGNIFIED IMAGE
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ELECTRON MICROSCOPE
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A MICROSCOPE THAT USES ELECTRONS INSTEAD OF LIGHT TO PRODUCE AN IMAGE
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GRAM-POSITIVE CELL WALL
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THE CELL WALL OF MOST GRAM-POSITIVE BACTERIA, CONSISTING OF PEPTIDOGLYCAN AND TEICHOIC ACIDS
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CONFOCAL MICROSCOPY
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A LIGHT MICROSCOPE THAT USES FLUORESCENT STAINS AND LASER TO MAKE TWO- AND THREE-DIMENSIONAL IMAGES
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SCANNED PROBE MICROSCOPY
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MICROSCOPIC TECHNIQUE USED TO OBTAIN IMAGES OF MOLECULAR SHAPES, TO CHARACTERIZE CHEMICAL PROPERTIES, AND TO DETERMINE TEMPERATURE VARIATIONS WITHIN A SPECIMEN
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OCULAR LENSE
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IN A COMPOUND LIGHT MICROSCOPE, THE LENSE CLOSEST TO THE VIEWER; ALSO CALLED THE EYEPIECE
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REFRACTIVE INDEX
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THE RELATIVE VELOCITY WITH WHICH LIGHT PASSES THROUGH A SUBSTANCE
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FLUORESCENT-ANTIBODY (FA) TECHNIQUE
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A DIAGNOSTIC TOOL USING ANTIBODIES LABELED WITH FLUOROCHROMES AND VIEWED THROUGH A FLUORESCENCE MICROSCOPE; ALSO CALLED IMMUNOFLUORESCENCE
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SIMPLE STAIN
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A METHOD OF STAINING MICROORGANISMS WITH A SINGLE BASIC DYE
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CAPSULE
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AN OUTER, VISCOUS COVERING ON SOME BACTERIA, COMPOSED OF A POLYSACCHARIDE OR POLYPEPTIDE
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TOTAL MAGNIFICATION
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THE MAGNIFICATION OF A MICROSCOPIC SPECIMEN, DETERMINED BY MULTIPLYING THE OCULAR LENS MAGNIFICATION BY THE OBJECTIVE LENS MAGNIFICATION
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MORDANT
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A SUBSTANCE ADDED TO A STAINING SOLUTION TO MAKE IT STAIN MORE INTENSELY
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DARKFIELD MICROSCOPE
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A MICROSCOPE THAT HAS A DEVICE TO SCATTER LIGHT FROM THE ILLUMINATOR SO THAT THE SPECIMEN APPEARS WHITE AGAINST A BLACK BACKGROUND
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DIFFERENTIAL STAIN
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A STAIN THAT DISTINGUISHES OBJECTS ON THE BASIS OF REACTIONS TO THE STAINING PROCEDURE
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ACID-FAST STAIN
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A DIFFERENTIAL STAIN USED TO IDENTIFY BACTERIA THAT ARE NOT DECOLORIZED BY ACID-ALCOHOL
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GRAM STAIN
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A DIFFERENTIAL STAIN THAT CLASSIFIES BACTERIA INTO TWO GROUPS, GRAM-NEGATIVE AND GRAM-POSITIVE
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GRAM-NEGATIVE BACTERIA
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BACTERIA THAT LOSE THE CRYSTAL VIOLET COLOR AFTER DECOLORIZATION BY ALCOHOL; THEY STAIN RED AFTER TREATMENT WITH SAFRANIN
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STAINING
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COLORIZING WITH A DYE TO VIEW THROUGH A MICROSCOPE OR TO VISUALIZE SPECIFIC STRUCTURES
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DECOLORIZING AGENT
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A SOLUTION USED IN THE PROCESS OF REMOVING A STAIN
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ANTIBODY
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A PROTEIN PRODUCED BY THE BODY IN RESPONSE TO AN ANTIGEN, AND CAPABLE OF COMBINING SPECIFICALLY WITH THAT ANTIGEN
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GRAM-NEGATIVE CELL WALL
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THE CELL WALL OF A GRAM-NEGATIVE BACTERIA, A PEPTIDOGLYCAN LAYER SURROUNDED BY A LIPOPOLYSACCHARIDE OUTER MEMBRANE
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SMEAR
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A THIN FILM OF MATERIAL CONTAINING MICROORGANISMS, SPREAD OVER THE SURFACE OF A SLIDE
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VIRULENCE
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THE DEGREE OF PATHOGENICITY OF A MICROORGANISM
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