Wednesday, October 7, 2015

Egg Diffusion Lab

 Egg Diffusion Lab
 In this lab we asked how and why does a cell's internal environment change, as it's external environment changes? During this lab we first placed the eggs in vinegar for more than 48 hours and after we took them out of the vinegar we washed them and then placed them into a different substance. The vinegar removed the membrane
 While looking at the class data I notice that after the sugar concentration increased the mass and circumference of the egg decreased. The change was cause by passive diffusion when an area of high concentration moves to an area of low concentration. Also more solute inside the cell 
A cell's internal environment changes as it's external changes because of diffusion. It would move from areas of high concentration to low concentration until they reach eqilibrium. After placing the eggs in vinegar, water, and sugar the eggs had shrunk and grown. After placing it in vinegar it shrunk but when we placed them in water and sugar the egg grew. 
This lab demonstrates the biological principal that a cell's internal environment changes as it's external environment changes. This lab demonstrated this principal. 
I can relate this lab to real life with examples like why fresh vegetables are sprinkled with water at markets the water is keeping the vegetables fresh with hypertonic solutions. They are solutions with less solute concentration that what is inside the cell with cells gaining water.  
Based on this experiment the next thing I would want to test would be placing the egg in oil because vinegar and oil are opposites and they don't mix so I would like to know if it would do the opposite of what the vinegar did to the egg or if it would do the same thing. 





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