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7 Cards in this Set
- Front
- Back
cell theory states that all living things composed of cells . |
تنص النظريه الخلويه على أن الكائنات الحيه تتكون من خلايا |
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Sicentists use Microscoped to see cells |
يستعمل العلماء المجهر لرؤية الخليه |
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LM light microscope |
- use visible light ( الضوء المرئي ) - Magnification 1000 ( تكبيرها ألف ) - using to see speciemen of micro 10^-6 size ( nucles ) ( يستخدم لرؤية العينات التي حجمها بالمايكرو كالنواه. ) |
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EMs electron Microscope |
- Use beam of electrons - Magnification 100,000 - using to see speciemen of nano 10^-9 size like ( atoms , molecules , proteins ) |
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tow typs of |
- Scaning ( SEMs ) - transmission ( TEMs ) |
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- Scaning ( SEMs ) |
focus a beam of electrons onto the speciemen Surface and give 3d image
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- transmission ( TEMs ) |
focus a beam of electrons through speciemen to study internal structures of cell .very important in biology |