Today's activity is all about ATP, hydrolysis, dehydration synthesis and cellular respiration. We broke out the molecular puzzle pieces to model ATP structure and the chemical reactions that take place involving ATP.
Students worked in teams of four to design the digestive system for their Maniken. Each group researched the enzymes needed to chemically breakdown each macromolecule and labeled their Maniken. Student groups were assigned a bite of food: butter, steak, bread or celery. They used this bite to give a presentation over the digestive system while explaining what each structure does to mechanically and chemically digest their specific food.
The HOSA Leadership Team planned a kickoff for HOSA Week called, "A Look into Health Careers." This evening involved pizza, guest speakers and a special lab activity. Our guest speakers were awesome and the students who attended got a lot our of their insight. A huge thank you goes out to the folks at Amedisys for taking time out to talk with our high school students. The lab activity involved HeLa cells and learning to use several new lab techniques including the use of micropipetters and oil immersion microscope work.
In our final activity for our lesson, the students performed a calorimetry lab. Each group selected two foods to test by lighting the food on fire and measuring the temperature change of the water in a can above the burning food. We had a lot of success (fire) with Oreos and Fritos. Students also tested marshmallows, Lucky Charms, Ritz Crackers, Peanuts and Vanilla Wafers. I think some students were disgusted by the substances dripping from the burning Oreos. It certainly didn't look like something you would want in your body! Our lesson on food wraps up Monday with a quick quiz. The quiz will include information about testing food for macromolecules, food labels, biochemistry of food and energy content in food. Our next lesson will focus on what it is like to live with diabetes. I am excited to have one of my former students coming in to share his story with the class.