Osmosis in an egg.Investigate how the change of salt solution can affect the mass of an egg.

Results:

Graph:

Conclusion:

As a conclusion, our aim was successful; this can be explained by the results shown above. In terms of Osmosis and cell membrane it was proved that different salt solutions can affect the mass of an egg. The shell of the egg was removed because it was thought that the process would faster and efficient. Another reason could be that by removing the shell, the possibility of having errors will be lower. The egg was dried with a paper towel before weighing it, because in this way the balance will weigh only the mass of the egg and not remains of water. It’s better to compare the percentage change in mass rather than simple change in mass because results will be more accurate while comparing them. Having results in percentage means they are out of 100%, therefore it extends over different results to obtain one. The egg in distilled water or in 0% salt solution will expand more compared to one placed in salt solution. This occurs because the concentration of water in the beaker is greater than the water concentration of the egg. Hypertonic explains when the concentration of solute is greater inside the animal or plant cell than the concentration in the environment. Osmosis causes a net flow of water into the cell, which causes it`s expansion.  In my own perspective, the use of eggs as a model for showing osmosis in animal cells is correct, as there`s a possibility of testing how salt solute will pass through the cell membrane.