AP1L-Compound Microscope Lab2.ppt

AP1L-Compound Microscope Lab2.ppt - Compound Microscope A...

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Compound Microscope A microscope is a very powerful magnifying glass A microscope helps you see things like cells up close
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Early Microscopes - Anton Van Leeuwenhoek The father of microscopy, Anton Van Leeuwenhoek of Holland ( 1632- 1723 ). Anton Van Leeuwenhoek was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.
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Relative Sizes of Organisms Human ~ 2 Meters Egg ~ 400 cm Frog eggs ~ 2 mm Eucaryotic cells ~ 10-100µ Bacteria ~ 1-25µ Mirochondrion ~ 1µ Viruses ~ 40 -100 nm Ribosome ~ 30 nm Proteins ~ 3-10 nm Molecules 0.5 - 1 nm
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Compound Microscope Total Magnification = mag of eyepiece X mag of objective (eg 10 X 40 = 400) Resolution - the ability to distinguish one point from another. (max~ 0.2µ) Refractive Index - the ability of a medium to bend light.
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The Microscope and its uses
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Parts of a Compound Microscope Functions compoun microscop
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Eyepiece View the specimen through the eyepiece
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