Egg Macromolecule Conclusion

Derek Fung P5

Aug. 28, 2015

Egg Macromolecule Conclusion

In the lab we had finished, we were trying to test if macromolecule can be identified in an egg cell. For each part of the egg we had tested, we had found that there were some macromolecules in each parts, and little or none in other parts. In the egg membrane, we found lipids and polysaccharides; in the egg white, polysaccharides and in the egg yolk: lipids, polysaccharides, and monosaccharides. When we used special liquids on each of the egg parts, the part changes color, depending on the part or the substance used. For example, some parts turn green if the substance used identifies that there are monosaccharides in the part. This evidence proves that there are carbohydrates in the egg, because of the color changes when you use.

Even with this evidence here, we have made some mistake here and there in the experiment. One such example is during the test where we were looking for proteins in the parts. While we were doing so, we found that the substance turned all but one part mostly blue, except the egg yolk, which was a mixture of yellow and blue. To think that the egg had no proteins make me think that there was an error in the procedure, but several others had this problem also, which made it hard to know if I did it right or wrong. This error could take away an important part of the results that we could have lost if the procedure was done wrong. Another error that could have changed the results would be when we were using the pipette. While we were adding each of the egg parts to the containers, we used the same pipette for each of the parts, thus mixing a small part of each of the egg into the other. This error could have changed the effects of the substance we used on each part, making it produce a different color than what we had expected. A few ways to ensure that these errors could be avoided are by having a separate pipette for each of the containers when transferring a sample of each of the egg parts, and by spending a lot more time on the protein test to see if there is progress going on.

The purpose of this lab was to find the macromolecules and know its uses in each of the egg parts. This is a review of what we had learned in class about macromolecules and an in-depth review of how the macromolecules were used in each parts. This lab can be applied to parts other than the egg, such as the human body or animals, since egg cells are nearly the same as the humans or animals.