| A | B |
|---|
| ocular | used to view the slide |
| stage | area where the slide sits |
| body tube | part that shields light going through specimen from being drowned out by room light |
| revolving nosepiece | turns to change the objectives |
| coarse adjustment knob | use to focus in scanning and low powers |
| fine adjustment knob | use to focus in high power |
| base | supports the rest of the microscope |
| arm | attaches the rest of the microscope to the base |
| diaphragm | controls amount of light entering the objective |
| scanning objective | first used to view specimen |
| low power objective | used to see greater detail |
| high power objective | used to see greatest amount of detail |
| stage | supports the slide |
| coverslip | protects objective lens from specimen; helps in viewing wet mount slide |
| transmission electron microscope | used to view internal details of cells |
| scanning electron microscope | used to view external details of cells and organisms |
| lens paper | used to clean objective lenses only |
| microscopy | the study of microscopes |
| van Leeuwenhoek | developed the first microscope |
| light microscope | used light waves to see specimen |
| depth of field | amount of adjustment needed to view the details of 3D specimens |
| resolution | ability to see microscopic organisms as separate beings |
| micron | unit of measurement used to determine the size of specimens |
| immersion oil | permits all light rays to enter 100X objective; decreases blurring at high magnification |
| 40X | combined magnification for ocular and scanning objective |
| 100X | combined magnification of ocular and low power objective |
| 400X | combined magnification of ocular and high power objective |
| 1000X | combined magnification of ocular and oil objective |
| oil objective | permits viewing small organisms such as bacteria |
