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Lesson Plan #:AELP-BIO002
Author: Margaret Childers, Nampa Senior High Date: May 1994
Grade Level(s): 10
Enzymes are proteins that speed up or slow down a chemical reaction and are not consumed by the reaction. They play an important role in the living process. The most easily understood use of enzymes is in the digestive process. Digestion can include nutritious molecules or potentially harmful molecules like alcohol. Students will use active enzymes in their saliva to demonstrate how enzymes work on common food molecules. They are also asked to apply this concept to alcoholism.
The activity will demonstrate enzyme activity and how changes in the physical conditions affects their performance. Students will work with active enzymes and explore the boundaries of their activity.
OBJECTIVES: (The student will be able to:)
RESOURCES/MATERIALS:
Starch solution, 6 test tubes, Benedict’s solution, Iodine solution, hot water bath
ACTIVITIES AND PROCEDURES:
TYING IT ALL TOGETHER: Using a minimum of 50 words, answer the following questions.
Discuss the opening demonstration allow students to change their explanation of enzyme activity. Discuss the objectives and the lab activity.
ADDITIONAL ACTIVITIES: SPIT
Before you start you will need to set up a chart that lists test tubes #1 – #6. Leave room for a description of the test tube contents and your observation of results.
Answer the following questions, summarizing the lab.
May 1994
These lesson plans are the result of the work of the teachers who have attended the Columbia Education Center’s Summer Workshop. CEC is a consortium of teacher from 14 western states dedicated to improving the quality of education in the rural, western, United States, and particularly the quality of math and science Education. CEC uses Big Sky Telegraph as the hub of their telecommunications network that allows the participating teachers to stay in contact with their trainers and peers that they have met at the Workshops.