The Sp-EGG-tacular Macromolecules Lab Conclusion!

       In this lab we asked the question, "Can macromolecules be identified in an egg cell?". My teammates and I found out that some macromolecules will be present in different parts of the egg than others. For the polysaccharide test, results of adding iodine will turn the egg solution from brown to black. The egg membrane turned black so we gave it a 10 out of 10 for the color change. We concluded that polysaccharides are present in the egg membrane because there are carbohydrates on the surface of the cells. As for the egg white in the protein test, macromolecule will be present when the solution turned from blue to purple, it changed to a dark blue from the light blue. Based on previous knowledge egg white has the macromolecule, protein, located in there. As for a conclusion on quantitative data, my group and I gave it a 5, unsure for what happened in the test. In an egg, the embryo, aka the yolk, will eat the egg white because it is a protein that will help develop the organism. Finally, when my teammates and I tested the egg yolk for the lipid test, it turned from red to orange which meant that the macromolecule, lipid, is present in the egg yolk. For a final analysis, the transparent membrane surround the egg yolk is made of phospholipids. This information came from our lecture notes and lab. All of this data supports our claim because our class tested which macromolecules are present and we all discussed which ones are found in the different parts of the egg.
       While our hypothesis supported our data, there could have been errors due to the protein test in which there was not enough egg  in the test tubes so that test had to be re-tested. There was another possible error due to contamination when mixing the egg solutions with the same tool. Due to these errors, in the future experiments I would recommend to pay attention to what you are doing and double check with the instructions to see if you are doing the lab right.
       This lab was done to specify the the macromolecules in a more visual understanding way. From this lab I learned the the construction of an egg and the reasoning behind the macromolecules which helps me understand the concept of molecules and their purposes. Based on my experience from this lab I will use the data I have recieved and use that information to test other biological concepts.