CB1 a 0.0 / 5 ? BiologyMicroscopesGCSEEdexcel Created by: Nyc03Created on: 20-10-18 09:58 Electron microscope A microscope with high magnification and resolution, employing electron beams in place of light and using electron lenses. 1 of 8 Instrument's resolution The fineness of detail that can be seen in an image 2 of 8 Why some cells can be seen with Electron and not Light microscopes Some cell structures too small to be resolved (an electron microscope has a greater magnifying power). Alight mocroscope can magnify up to 1000x 3 of 8 How to calculate the total magnification Multiply the magnification of the lenses together 4 of 8 How to calculate magnification using an equation Magnification = Measured size divided by Actual size 5 of 8 Calculating size Measure length of specimen (mm). Measure length of scale bar (mm). divide the length of specimen by the length of scale bar. 6 of 8 Calculating size (continued) Multiply scale bar with the last answer (units are the same as the scale bar) 7 of 8 SI Prefix 10 (to the power of 12) - 1 000 000 000 000, (Tera (T). 1 000 Kilo (K) - 10 (to the power of 3) 8 of 8
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