Science - Biology
Standard 2 Objective 1
2 class periods of 60 minutes each
Students use enzyme solutions to observe the effects of enzymes on different types of food.
Time Needed: one 50 minute period for set-up, one 50 minute period for follow up observations and conclusions.
This experiment can be done with any enzymes available, including those found in contact lens cleaning packets or meat tenderizer. If commercially available enzymes are used, you may select any that you wish to use. The enzymes listed below would "digest" a variety of foods:
It is important to discuss with students the differences between enzymes in a living organism and enzymes in a test tube. The action of enzymes often relies on other substances and complex reactions that cannot be mimicked in a test tube.
Identify what will qualify as "digestion" in the test tubes. Foods that dissolve or soften in water need to be avoided so that the breakdown of the foods by enzymes is more clear.
1. Students perform experiment and collect data ..4
2. Students correctly analyze data ..4
3. Students make thoughtful conclusion .4
Lesson Design by Jordan School District Teachers and Staff.