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5 Cards in this Set

  • Front
  • Back
Light microscope
-can magnify only about 1000 times
-glass lense bends light to magnify image
Cell Theory
all living things are composed of cells and that all cells come from other cells
Electron Microscope (EM)
-uses beam of electrons rather than light
-can see things at one nanometer (1000000 times)
-2 types of EM's (scanning+transmission)
-electromagnet lense
Scanning Electron Microscope (SEM)
-used to sudy detailed architecture of cell surfaces
-cover cell with metal so electrons can't go through cell but metal emits electrons that are focused to show an image of the outside of the cells.
-electromagnet lense
Transmission Electron Microscope (TEM)
-cut specimin into thin sections
- aim electron beam through section
- electromagnet lense- bends electron beam to focus image