Osmosis in red onion's cells
What is osmosis?
We can see the movement of the water depending of the concentration
These are the three types of osmosis.
Salt and distilled water
Salt water is more concentrated than distilled water
Steps that we have to follow to do the experiment
2 We place it into the microscope
3 We add salt water to the layer and we observe that the cells get smaller
4 We add distilled water to the layer and we observe that the cells get bigger
Why do the cells get smaller with salt water and get bigger with distilled water?
When we add distilled water to the layer, the osmotic pressure is higher and the solution isn't concentrated. The cells get water and explode (plasmolisis)