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10 Cards in this Set
- Front
- Back
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What’s magnification |
Image size / real size |
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Why has microscopic technique improved over time? |
Because of technology and knowledge improving |
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What do light microscopes do |
Use light and lenses to form an image of a specimen and magnify it |
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What can you see with light microscopes |
Individual cells and large sub cellular structures e.g nuclei |
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What do electron microscopes do |
Use electrons to form an image |
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Why are electron microscopes better |
Better magnification and resolution, seeing more smaller things in better detail e.g chloroplasts |
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What is resolution |
The ability to distinguish between two points |
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What is magnification |
Make something look bigger |
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How do you prepare a slide? |
-drop of water -cut up specimen and peel layers using tweezers -place onto the water on slide -add drop of iodine solution to highlight object -place cover slip, tilt and lower it and try to get no air bubbles |
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How do you look at a microscope? |
Clip slide on stage Select lowest power Use coarse adjustment knob Look down eyepiece Adjust focus Swap if needed |
