1605291
Descrição
Mapa Mental por Lucy Youle, atualizado more than 1 year ago
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Criado por Lucy Youle
mais de 9 anos atrás
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microscopes
- light
- resolution=200nm
- bulb>
- stage>
- condenser lens
- specimen
- objective lens
- eyepiece lens
- x10
- x10
- x4, 10, 40, 100
- eyepiece lens
- objective lens
- specimen
- condenser lens
- stage>
- bulb>
- mag= x1500
- staining- coloured dyes bind to biological organisms
- sectioning- specimens embedded in wax
- resolution=200nm
- electron microscopes
- TEM & SEM
- X500,000. RS=0.2nm
- beam passes through
- 2d images
- 2d images
- beam passes through
- x100,000 RS=0.2nm
- beam bounces off, produces 3d images
- beam bounces off, produces 3d images
- X500,000. RS=0.2nm
- electrons have a wavelength of 0.004nm
- limitations: need a high degree of skill and training.
- very expensive
- air molecules deflect electrons so needs to be done in a vaacuum
- air molecules deflect electrons so needs to be done in a vaacuum
- very expensive
- TEM & SEM
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