Egg Osmosis Egg Lab Report

Osmosis is the movement of water, through a cell membrane, from higher to lower concentration. A solution can be hypertonic, hypotonic, or isotonic when compared to a cell. Hypertonic solutions occur when the solution is more concentrated compared to a cell and the water moves out of the cell and into the solution. Hypotonic solutions occur when the solution is less concentrated compared to a cell and the water moves into the cell and out of the solution. The last type of solution, isotonic, occurs when the solution has the same concentration compared to the cell. The water moves both in and out of the cell when a solution is isotonic. During the lab, the egg represented a cell and how a cell would react to different types of solutions. The three solutions that the egg was placed in were vinegar, corn syrup, and water (distilled). image.png

The egg expanded and the mass of the egg increased after a day of being fully submerged into the vinegar solution. The egg originally had a mass of 60.55g with a white colored shell before being placed into the vinegar solution. When the egg was taken out of the vinegar solution a day later, the egg had a mass of 80.84g and the shell was completely dissolved. The

The process of osmosis changes the volume of water in a cell which changes the size of the cell. The vinegar and distilled water were both hypotonic solutions, so water was added to the egg. As a result of more water entering the egg, the egg would expand. The volume of water in the egg increased, causing the size of the egg to expand as well. The corn syrup was the only hypertonic solution because water moved from the egg, to the solution (corn syrup). This type of solution caused the egg to shrink because water was being taken out, or moved, into the solution. The volume of water in the egg decreased, causing the size of the egg to