Egg Osmosis Lab Report

This lab is about eggs and how they are similar to cells. We are doing this lab to understand how the plasma membrane works, as well as the role it plays in diffusion and osmosis. This will also allow us to learn about isotonic, hypotonic, and hypertonic cells. Once the egg is placed in water, it will lose mass and shrivel. This is because it will try to reach the same concentration as the water. When the egg is placed in syrup, it will gain mass and swell. This is because the syrup is more concentrated than the agg, so the egg will increase in mass to become equal.

For this lab, we used an egg to represent a cell. The shell represented the plasma membrane and the yolk represented the nucleus. We used a bucket and vinegar to soak and decalcify

After soaking it in water, it looked a bit larger, and the window had grown, with little pieces starting to fall off. The egg felt similar to a water balloon. After soaking it in syrup, it had shriveled and part of it started to cave in. It felt empty and caved in every time it was touched. I could feel the yolk through the outside of the egg, and it felt very stiff.

The isotonic cell is similar to the original egg. This is because it hadn't gone through diffusion or osmosis, and was in homeostasis. The hypotonic cell is similar to the egg after it was soaked in water. When the egg was soaked in water, there was a lower concentration of water inside the cell than outside. This caused water to move into the egg, making it swell. The hypertonic cell is similar to the egg after it was soaked in syrup. When the egg was placed in syrup, the egg had a greater concentration of water than the syrup. This caused some of the water to leave the egg and made it

These were formed when the vinegar decalcified the egg. The vinegar and calcium caused a chemical reaction, resulting in bubbles. Once the egg was decalcified, the outside of it felt similar to a water balloon. This outside part of the egg is similar to the plasma membrane of a cell. This is because it kept the egg from seeping out, while also allowing things in and out. One thing that the membrane kept inside of the egg was the yolk, or nucleus. The nucleus progressively became visible throughout the experiment. It was easy to see once we had made the window on the outside of the egg.

In each situation, water either left or entered the egg. When the egg was soaked in water it gained mass. This is because there was a lower concentration of water on the inside of the cell than the on outside, causing water to enter the cell. When the egg was placed in syrup, it lost mass. This is because the concentration of water was the greatest inside the cell, causing some to leave the egg and making it shrivel. This data did not support my hypothesis. The egg increased in mass when placed in water and decreased in mass when placed in syrup. This was the opposite of what was stated in my