Egg experiment

Introduction: 

Molecules through a semi-permeable membrane into a region of higher solute concentration. Water molecules travel through the plasma membrane in order to equilibrate the intra and extra cellular concentrations.

Material:

-Egg

-Distilled Water

-600mL Beaker

-Knife

-Spatula

-Vinegar

Objectives: 

1. Know about the osmosis phenomena.
2. Understand the process of osmosis in plasmatic membranes

Procedure:
We divide this experiment in two days

First Day:
We take a 600mL beaker and put inside the egg. Lately, we cover the egg with vinegar and see the first result. The spatula help to dive the egg in the vinegar. When the egg shell dissolves we change the vinegar for distillated water. Before we change the vinegar we have to clean the beaker. We note the volume of solution than we put inside the beaker. (The egg absorbes some water and it enlarges)

Second Day:
In the second day, we observe the results and we see the egg bigger than the first day. This process is called turgor pressure.