Monday, September 21, 2015

Unit 2 Reflection 

In this unit we learned a lot about macromolecules like carbohydrates, lipids, nucleic acids, and proteins. Proteins are made of amino acids and nucleic acids store and transmit genetic information. Lipids are mostly made of carbon and hydrogen bonds. Carbohydrates are the main source of energy and plants and animals use it for structural purposes. We learned a lot about enzymes and also did a lab to help understand enzymes. I learned that the pH and temperature will affect enzymes and that with the right temperature It will work at a good constant speed. Some of my weaknesses in this unit were understanding the different between the structure and function of macromolecules. The sweetness lab was quite confusing and that is something that I need to look back at for more clarification. One thing that wasn't very confusing during that lab was explaining how sweet each sugar was and which sugars are the sweetest or the most plain. A success was understanding the structure of enzymes. I can thank the teacher for drawing the structure and explaining it several times during our do now. Another successful topic in this unit was the pH scale with acids and bases. It was a successful topic because it was mostly review. A cohesion is an atttraction between molecules of the same substance and adhesion is the attraction between molecules of different substances. A capillary action is cohesion+adhesion. A mixture is material composed of 2+ elements/compounds that are physically mixed together. A solute is a substance that is dissolved and a solvent is a substance that the substate dissolves in. A polar is an unequal distribution of charges between H and O. 

No comments:

Post a Comment