Life Science

Biomolecules

I am in need of a biomolecule project for my students to help them obtain mastery on this objective. I was hoping for one that would require them to build a model of each biomolecule so that they could see the structure and then something that also ties in the function of each as well. Does any have a project that they do with their Biology students?

Andrea Gouldy
Andrea Gouldy
2695 Activity Points

Before I introduce macromolecules I spend time on the properties of water. I use a 12 station lab where students observe adhesion, cohesion, and polarity. This helps me down the road so students have some background when we discuss why macromolecules behave the way that they do. I attached an activity where students isolate fat from different brands of chips. They crush up the chips and use hexane to isolate the fat. Students are always amazed to see all of the left over fat in the beaker! ** You should preform this in a fume hood since you are using hexane. Once students have finished the lab let the beakers stay in the fume hood overnight and the next day all that will be left is the fat from the chips. Let me know if you would like to get the procedures for the water stations. I can get them to you on Monday. Andy

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Andrew Hegdahl
Andrew Hegdahl
945 Activity Points

Sounds like a great lab and I will definitely look into that for next year but I am really in need of a project. This six weeks their common assessment has to be a project in which all students complete the same project based on the same criteria so I need something that students can work on in class and at home and will be able to present to everyone else.

Andrea Gouldy
Andrea Gouldy
2695 Activity Points

Andrea, Here are some ideas Lesson Plan Overview / Details Students will investigate which macromolecules are present in different types of food. Students will be testing for proteins, carbohydrates and lipids in common food items. After they are comfortable with the testing and identification process, they will make connections to macromolecules in livestock feed. http://www.cteonline.org/portal/default/Curriculum/Viewer/Curriculum?action=2&view=viewer&cmobjid=177679

Pamela Auburn
Pamela Auburn
68505 Activity Points

Andrea, I like this site from UMass that show biomolecules in 3D. There is also a link to resources ob biomolecules. Biomolecular Explorer 3D is designed to give high school biology teachers easy access to interactive 3D structures of biologically significant molecules. All the molecules are displayed and explored in a browser window with no software installation required. Some materials are also available en español (in Spanish translations), including 3D DNA. http://www.umass.edu/molvis/bme3d/ This project on the material science of biomolecules was developed during a summer workshop http://mimp.materials.cmu.edu/hst/Projects/2012/2012-Bhamre.pdf

Pamela Auburn
Pamela Auburn
68505 Activity Points

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