You can see some of the structures of a plant cell under a microscope with a simple practical.


  1. You or your teacher should cut a small square section of an onion
  2. Using a pair of tweezers pull away the inner layer of the onion. This should be very thin as it should be a single layer of cells
  3. Transfer the cell sample onto you Microscope slide ensuring it is flat
  4. Add 1 or 2 drops of Iodine Solution
  5. Place a cover slip over the now stained onion cells
  6. Using a microscope appropriately look at the onion cells and try to draw/label what you can see *
Onion Cell.jpg
You should be able to identify these 3 parts of the onion cells. You may see more than 4 but if the pattern repeats you do not need to draw everything

* You may be asked to work out the magnification or actual size of the cheek cell.

I can now use a microscope to see cells! #Science4EB