Day+8+Enzymes

Daily Agenda: 1. Review for Quiz - 10 minutes 2. Quiz #1: Scientific Method, pH and Biomolecules - 20 minutes 3. Enzyme Notes - 15 minutes 4. Potato Enzyme Lab - 20 minutes 5. Friday Bingo - 25 minutes

Objective: 2.04 Investigate and describe the structure and function of enzymes and explain their importance in biological systems.

Introduction: The enzyme peroxidase is important to all cells because it removes the toxic cell waste product hydrogen peroxide. H2O2 + perioxidase --> H2O + O2  In this activity the student will demonstrate the action of potato peroxidase on hydrogen peroxide (H2O2). The students will also investigate the affect of temperature and acid conditions on enzymes. Copy the data table onto your paper: Post Lab Questions - answer in complete sentences on your paper: 1. What were the bubbles that we saw in the experiment? 2. Explain your results for the boiled potato. 3. Explain your results for the vinegar potato. 4. What affect do temperature and acid conditions have on enzymes, and how did this experiment show this? 5. Which trial was the control and why is a control necessary? 6. What is hydrogen peroxide used for in the home? 7. Explain the usefulness of hydrogen peroxide with what you demonstrated.
 * Potato Enzyme Lab **
 * **Trial** ||  **Observations**  ||
 * Fresh Potato & Water ||   ||
 * Fresh Potato & Hydrogen Peroxide ||   ||
 * Boiled Potato & Hydrogen Peroxide ||   ||
 * Vinegar Potato & Hydrogen Peroxide ||   ||