Biology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Metric System | System of measurement based on powers of ten used by scientists
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| Meniscus | a curve in the surface of a molecular substance (water, of course) when it touches another material.
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| Base | Supports the microscope
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| Low power objective lens | Provides magnification of 10x and is the shortest objective
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| High power objective lens | Provides a magnification of 40x and is the longest objective
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| Arm | Used to support the microscope when carried...holds the body tube, nose piece, and objective lenses
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| Nose piece | Holds the objective lenses and can be turned to increase the magnification
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| Body tube | Holds the objective lenses and the ocular lens at the proper distance
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| Stage | Supports the specimen or slide
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| Stage clips | Clips that hold the slide or specimen in place on the stage
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| Diaphragm | Controls the amount of light on the slide or specimen
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| Course adjustment knob | Used to focus under low power (moves stage up and down)
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| Fine adjustment knob | Used to "sharpen" image under both low and high power (moves stage slightly)
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| Ocular lens (eyepiece) | Magnifies the specimen image 10x
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| Total magnification | Multiplying the ocular lens 10x by the objective lens
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| Wet mount | Used to prevent specimen from falling off the slide
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| Coverslip | This piece of glass used to cover and protect a specimen on a microscope slide
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| Staining | Used to view specimens that are transparent (clear)
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| Methylene blue | Type of staining
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| Compound light microscope | Produce magnified images by focusing visible light rays, magnification is about 1000x
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| Basic solution (Alkaline solution) | Contains lower concentrations of hydrogen ions and have PH values above 7
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| Acidic solution | Contains higher concentrations of hydrogen ions and have PH levels below 7
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| Neutral solution | Solutions with PH reading around 7
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| Buffer | Weak acids or bases that can react with strong acids or bases to prevent sudden changes in PH
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| Field of view ("FOV") | The diameter of the circle of light that you see when looking into a microscope
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| Slide | Glass the specimen is placed on
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| Electron Microscope | used to view dead specimens in great detail
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| Scanning Electron Microscope | used to view great detail of the surface of a cell
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| Transmission Electron Microscope PH | used to view interior of a specimen in great detail (Ex: organelles)
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
gmottola
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