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Tuesday, October 11, 2016

Egg Diffusion Lab Analysis

In this lab we tested the effect two solutions, one hypotonic, and one hypertonic would have on egg mass and circumference.

One of the eggs was placed in sugar water, while the other was placed in deionized water. The sugar water was a hypertonic solution, thus the egg shrunk in both mass and circumference. It had an average of -42.17% change in mass, and a -19.67% change in circumference, as it was going from high to low concentration - diffusion. The solute concentration was greater outside and the solvent concentration was greater inside. The cell tried to move into equilibrium, by using passive diffusion through the membrane, forcing solvent outside the cell, thus, causing the egg to shrink.

The other egg was placed in deionized water, a hypotonic solution, thus the egg grew. The movement of solvent inside the cell, caused the cell to grow by an average factor of 1.18% for mass and 1.94% for circumference.

Because the cell has to stay in equilibrium to maintain the balance of solute and solvent concentration, both the cell's internal and external environments change. This changes occur either through facilitated or passive diffusion through the cell membrane.

This lab demonstrates diffusion and hyoptonic and hypertonic solutions. It shows how a cell will always want to get into equilibrium despite the fact that it must change size to do so.

Fresh vegetables are sprinkled with water, so they can grow larger, while roads are sometimes slated to turn the roadside ice into water.

I would want to test what type of hypertonic and hyoptonic solutions cause the solute and solvent concentrations to change the quickest.



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