Chapter 2 Keywords Flashcards
A microscope that illuminates the specimen
bright field microscope
The preservation and hardening of a tissue sample or cells to retain as nearly as possible the same relations they had in the living body
fixation
Dyes that are cationic or are positively charged
basic dyes
Any straining procedure involving only a single dye
simple staining
Dyes that are anionic or negatively charged
acid dyes
Any staining procedure that distinguishes organisms based on their staining properties
differential staining
The lens located below the stage of a light microscope that focuses a cone of light on the sample
condensor
The minimum distance that can separated two objects that still remain identifiable as separate points
resolution
A point at which rays of light converge from refraction of a lens
focal point
An electron microscope that forms a three dimensional image by moving a beam of focused electrons across an object and reading the electrons scattered by the object
scanning electron microscope
The bending of a light wave when it passes from one medium into another of different optical density
refractive
A microscope that exposes a specimen to a specific wavelength of light and then forms an image from the fluorescent light emitted
fluorescence microscope
A unit of length equal to one billionth of a meter
nanometer
The eyepiece of a microscope
ocular lens
The distance from the surface of a lens or mirror to its focal point
focal length
