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Biology Ch. 1.4

TermDefinition
Compound Light Microscope A microscope that shines light through a specimen and has two lenses to magnify an image
Eyepiece (ocular lens) Magnifies the image; usually 10x
Objective Lens Light passes through the specimen and then through the objective lens, which is located right above the specimen; enlarges the image of the specimen
Stage A platform that supports a slide holding the specimen and is placed over the opening in the stage of the microscope
Light Source A light bulb that provides light for viewing the image and can either be a light reflected with a mirror or an incandescent light from a small lamp
Magnification The increase of an object's apparent size
Nosepiece The structure that hold the set of objective lens and rotates them into place above the specimen
Resolution The power to show details clearly in an image
Scanning Electron Microscope Passes a beam of electrons over the specimen's surface and provides three-dimensional images of it
Transmission Electron Microscope Transmits a beam of electrons through a very thinly sliced specimen. Magnetic lenses enlarge the image and focus it on a screen or photographic plate.
Metric System The single, standard system of measurement scientists use based on powers of 10 (decimal system)
Base Unit Describe length, time, mass, and other qualities
Created by: HuffmanV20