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Structure of an epithelial cell from the small intestine.
Prokaryote: Before nucleus
Transmission Electron Microscopes
Electrons are fired onto the specimen which then absorbs electrons. this then causes an image to be produced on a screen
*The whole thing must be in a vacuum
*A complex staining process
*Image is black and white
* Specimen must be thing
*Image might contain artefacts
Magnification:
Magnification= Size of image/ size of object
M= I/o (MILO)
Cell Fractionation:
the process where cells are broken up in a c cold, isotonic and buffered solution.
Ultracentrifugation:
Process by which fragments are seperated.
