| A | B |
|---|
| metric system | decimal system of measurement based on certain physical standards and scaled on multiples of 10 |
| microscope | device that produces magnified images of structures that are too small to see with the unaided eye |
| compound light microscope | microscope that allows light to pass through a specimen and uses two lenses to form an image; dead and living organisms can be observed |
| electron microscope | microscope that forms an image by focusing beams of electrons onto a specimen in a vacuum; organisms must be dead and dried out; images have no color |
| transmission electron microscope (TEM) | a microscope that operates by shining a beam of electrons through a thin specimen |
| scanning electron microscope (SEM) | a microscope that operates by running a pencil-like beam of electrons back and forth across the surface of a specimen |
| cell culture | group of cells grown in a nutrient solution from a single original cell |
| cell fractionation | technique in which cells are broken into pieces and the different cell parts are separated |
