Term
| how many centimeters are in a meter? |
|
Definition
|
|
Term
| how many millimeters are in a meter? |
|
Definition
|
|
Term
| how many micrometers are in a meter? |
|
Definition
|
|
Term
|
Definition
| eyepiece that one looks into |
|
|
Term
microscope parts
nosepiece |
|
Definition
|
|
Term
microscope parts
objective lenses |
|
Definition
|
|
Term
microscope parts
iris diaphragm |
|
Definition
| changes the intensity and size of light passing into specimen |
|
|
Term
microscope parts
condenser |
|
Definition
| focuses the light into the specimen |
|
|
Term
microscope parts
illuminator |
|
Definition
|
|
Term
microscope parts
focus knobs |
|
Definition
| move lenses closer and further from specimen |
|
|
Term
|
Definition
| where you place the slides |
|
|
Term
|
Definition
|
|
Term
|
Definition
| dark objects are visible against a bright background, light reflected off specimen doesn't enter objective lens |
|
|
Term
|
Definition
| light objects are visible against a dark background, light reflected off the specimen enters the objective lens |
|
|
Term
| phase-contrast microscopy |
|
Definition
| accentuates diffraction of the light that passes through a specimen |
|
|
Term
|
Definition
| uses UV light, fluorescent substances absorb UV light and emit visible light, cells may be stained with fluorescent dyes |
|
|
Term
|
Definition
| uses electrons instead of light, shorter wavelength of electrons gives greater resolution |
|
|
Term
| transmission electron microscopy |
|
Definition
| ultrthin sections of specimens, light passes through specimen than an electromagnetic lens, to a screen or film, specimens may be stained with heavy metal salts |
|
|
Term
| scanning electron microscopy |
|
Definition
| electron gun produces a beam of electrons that scans the surface of a while specimen, secondary electrons emitted from the specimen produce the image |
|
|
Term
| scanning-probe microscopy |
|
Definition
| uses metal probe to scan specimen, produces 3D images |
|
|
