Cells & Heredity:Ch. 1:Sec.1
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Created by:
mrskirkscience on January 4, 2011
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12 terms
Terms | Definitions |
|---|---|
 cell | the basic unit of structure and function in living things |
| microscope | an instrument that makes small objects look larger |
| cell theory | a widely excepted explanation of the relationship between cells and living things |
| Robert Hooke | An English scientist who was one of the 1st people to observe cells. He built his own compound microscope. |
| Anton van Leeuwenhoek | A Dutch businessman who sold cloth. In his spare time he built simple microscopes. |
| Zacharias and Hans Janssen | Dutch eyeglass makers who made one of the first compound microscopes. |
| SEM | Scanning Electron Microscope, sends electrons over the surface of a specimen, rather than through it. |
| TEM | Transmission Electron Microscope, sends electrons through a very thinly sliced specimen. |
| STM | Scanning Tunneling Microscope, measures electrons that leak, or "tunnel" from the surface of a specimen. |
| convex lense | a lens with a curved shape, not flat, allowing light passing through the sides of the lens which allows the eye to see the object as larger than it really is |
| compound microscope magnification | a microscope that has two convex lenses |
| electron microscopes | microscopes that use a beam of electrons instead of light to produce a magnified image |
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