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Onion cell and cheek cell
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| Submitted: Mon Apr 24 2006
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Onion cell and cheek cell Introduction To stain the cells so the parts of the cell such as the nucleus are marked out and then it can be viewed and observed more clearly under a microscope. The cells are stained and prepared on to a slide and with a cover slip placed on top to be ready to observe under a microscope. Equipment * Microscopes * Lamps * White tile * Cotton bud * Dropper pipettes * Slides * Cover slips * Labels * Forceps * Piece of onion Reagents required * Methylene blue (1 in 100) * Iodine Should be available * Laboratory coats * Gloves * Safety glasses Safety Points When using a light microscope we use the light form a lamp to brighten the microscope. We don't use the sun because it is too powerful, and if the naked eye looks at the sun for too long, the retina can be burnt. I should place the microscope in the middle of the table so that it doesn't slip...
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