OSMOSIS IN RED ONIONS CELLS

WHY CAN'T WE DRINK SALAD WATER

WHAT IS OSMOSIS

Osmosis is the diffusion of the movement of water from a region of higher concentration to a region of lower concentration through a cell membrane or other semi-permeable membrane until an equilibrium is reached

WHAT WE NEED

We need a red onion, a microscope, some salad water and some distilled water to do this experiment.

MATERIALS AND PROCEDURE

STEPS

First, we extract a sheet from the red onion and we spill dye over it.

•Then, we put it in the microscope.

•After that, we spill salad water over it. We see that the cells become smaller.

•We spill distilled water and we see that the cells become bigger.