Cell of Onion peel




Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on May 2, 2010

Follow us at: https://plus.google.com/+tutorvista/

Check us out at http://www.tutorvista.com/content/bio...

Onion Cell 1. Take a small piece of onion and using forceps (tweezers) peel off the membrane from the underside (the rough side).
2. Lay the membrane flat on the surface of a clean glass slide, and then add one drop of dye (iodine or methylene blue). Be very careful; these dyes will stain your skin and clothes.
3. Using a pin, lower a thin glass cover slip onto the slide. Make sure there are no air bubbles.
4. Put the slide onto the stage of the microscope. Make sure the objective lens is set on low power, and the microscope light is turned on.
5. Look through the eyepiece lens and turn the focusing wheel until you can see the cells. They should look like lizard skin.
6. Swap the objective lens for a high powered one so that you can see the cells at a greater magnification. You should be able to make out the nucleus.

Please like our facebook page

Comments are disabled for this video.
When autoplay is enabled, a suggested video will automatically play next.

Up next

to add this to Watch Later

Add to

Loading playlists...