Wednesday, October 7, 2015

Egg Diffusion Lab

In this lab, we took 2 eggs and put one in deionized water and one in sugar water in separate cups and let it sit in a cool place to see changes in shape and size in each egg.
When the sugar concentration increased in the cup, the mass and circumference of the egg decreased. This was caused by the sugar water which is a hypertonic solution, a solute solution that has greater concentration than inside the cell and as a result, the cell loses water. The egg mass and circumference was originally weighed 88.91 grams and the length was 16 centimeters. At the end, the egg was 13 centimeters and weighed 41.99 grams. The egg mass and circumference was lost by diffusion. This change in mass and circumference also changed by high concentration of the inside of the egg when it was put in the sugar water and the molecules did not have much space to move around as it lost mass and circumference, there was a change in low concentration as molecules had more space to move around. The membrane in the egg also shrunk as a result of low concentration.
A cell's internal environment changes by the places the egg was put in. It was put in many solutions like vinegar, water, and in sugar water. This resulted in the change of the egg as it decreased when it was put in the sugar water because it's a hypertonic solution.
This lab demonstrated how a hypertonic solution is involved in a change of size in an object like an egg. The egg became smaller and smaller as the egg was left in the sugar water for long periods of time.
This lab is related to many things in the real world. One thing it is related to is fresh water sprinkled in vegetable. Fresh water is sprayed on vegetables to keep them fresh and keeping them in good shape. This is related to the lab by the egg as it broke apart when it was put into the sugar water. Another thing this lab is related to is roads that need salt to melt roads. This is needed so cars can drive on it safer. Salting to the plants damages the plants. This happens because of the salt on the plant cells causes the cells from the cell's cytoplasm to move out of the cell by osmosis.
An experiment that can use this experiment to make another experiment is how your hands shrivel up by putting it in water for long periods of time. Based on this experiment, this experiment would want to test the amount of time that the fingertips of the hand will shrivel up in cold water.




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