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Microscopes & Lab Techniques. What is a light microscope? Light Microscope – a device that uses light to produce an enlarged view of an object An example.

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Presentation on theme: "Microscopes & Lab Techniques. What is a light microscope? Light Microscope – a device that uses light to produce an enlarged view of an object An example."— Presentation transcript:

1 Microscopes & Lab Techniques

2 What is a light microscope? Light Microscope – a device that uses light to produce an enlarged view of an object An example of a simple microscope is a magnifying glass

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4 What is a compound microscope? Compound Microscope – contains 2 or more objective lenses. – One lens (low power) produces an enlarged image – Another lens (high power) further magnifies the image

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6 Magnification vs. Resolution Magnification – the enlargement of an image Resolution – how sharp or in focus an object is

7 What is an electron microscope? Electron Microscope – can magnify images more than 250,000 X – Uses electron beams rather than light

8 A Scanning Electron Microscope

9 An ant

10 Leaf from a Black Walnut tree

11 Pollen

12 A moth

13 A human skin cell

14 A cancer cell

15 Centrifugation Centrifugation – a process by which materials suspended in a liquid can be separated from each other based on density

16 Microdissection Microdissection – tiny instruments are used to perform various operations on living cells

17 Tissue Culture Tissue Culture – the technique of maintaining living cells or tissues in a culture medium outside the body

18 Chromatography Chromatography – any technique that separates different substances based on their chemical and physical properties

19 Electrophoresis Electrophoresis – the technique for separating substances made up of particles that have an electrical charge

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21 Spectrophotometry Spectrophotometry – a technique of using light to analyze samples


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