Download Osmosis in Red Onion Skin State standard 1.a. Students know cells

Osmosis in Red Onion Skin
State standard 1.a.
Students know cells are enclosed within semipermeable membranes that
regulate their interaction with their surrounding.
Purpose: To observe the process of osmosis in a plant cell.
Procedure:
1. Prepare a wet mount slide of red onion skin using tap water.
2. Draw at least 2 onion cells. Label the cell wall, cell membrane and
cytoplasm.
3. Add several drops of salt water
4. Observe the cytoplasm and position of the cell membrane.
5. Draw at least 2 cells.
6. Repeat steps 3-5 using distilled water.