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Microscope
| Question | Answer |
|---|---|
| Magnifies an image 10x; Attached to the top of body tube | Ocular Lens/Eyepiece |
| SThe black flat surface that supports a slide | Stage |
| Moves the body tube (or stage) up and down in large movements focusing of the objective lens | Coarse Adjustment Knob |
| Moves the body tube slightly to bring the image into exact focus | Fine Adjustment Knob |
| Objective that magnifies 4x | Low Power/Scanning Objective |
| Objective that magnifies 10x | Mid Power Objective |
| Objective that magnifies 40x | High-Power Objective |
| Located under the stage; Controls the amount of light that is allowed to pass through the object being viewed | Diaphragm |
| Supports the entire microscope | Base |
| Attaches the 3 objectives to microscope | Nosepiece |
| Attaches body tube to base | Arm |
| Is an upright student magnifying instrument that uses two sets of lenses | Compound Light Microscope |
| The increase in size of a specimens image when viewed through a microscope | Magnification |
| The power to show details clearly | Resolution |
| Use a beam of electrons to produce an enlarged image of the specimen; More powerful in magnification and resolution than light microscopes | Electron Microscope |
| Use a beam of electrons passed over the surface of the specimen to produce a 3-D image of the specimen's surface; Can magnify up to 100,000x | Scanning Electron Microscope (SEM) |
| Transmit a beam of electrons THROUGH a very thinly sliced specimen's internal structure; Can magnify up to 200,000x | Transmission Electron Microscope (TEM) |
| Used to make cell structures visible under the microscope | Biological Stains and Dyes |
| Dye used most often with animal cells | Methylene Blue |
| Dye used most often with plant cells | Iodine |
| How much of a specimen we can see in the microscope | Field of View |
| Light decreases when you switch to high power | Brightness |