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Biology Chapter 1-4
1-4
| Term | Definition |
|---|---|
| Compound Light Microscope | A microscope that shines light through a specimen and has two lenses to magnify an image. |
| Eyepiece | Magnifies the viewing image by 10x |
| Objective Lens | Enlarges the image of the specimen |
| Stage | A platform that supports a slide holding the specimen. |
| Light Source | is a light bulb that provides light for viewing the image |
| magnification | the increase of an object's apparent size |
| Nosepiece | the structurethat holds the set objective lens that rotates the lenses into place above the specimen |
| Resolution | the power to show details clearly in an image |
| Scanning Electron Microscope | a microscope that uses a beam of electrons over the specimen's surface. It provides 3 D images of the specimen's surface. It can magnify objects up to 100,000 times |
| Transmission Electron Microscope | a microscope that 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. It can magnify images up to 200,000 times |
| Metric System | a standard system of measurement that is made up of a decimal system and thus is passed on powers of 10. |
| base units | seven fundamental things that describe length, mass, time, and other quantities. |