Enzyme Action
Source Institutions
-
National Health Museum
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In this activity that can be used as a lab or demonstration, learners use Lactaid® and lactose to demonstrate the concept of enzyme action. Learners test a drop of milk and Lactaid® for the presence of glucose using glucose test paper. Learners also discover the color range of glucose test paper readings. In addition, learners construct paper models to help visualize enzyme action.
- Under 5 minutes
- 10 to 30 minutes
- Over $20 per group of students
- Ages 14 - 18
- Activity, Demonstration, Experiment/Lab Activity, Lesson/Lesson Plan
- English
Quick Guide
Materials List (per group of students)
- Spot plate or glass slide
- Marker
- Toothpick for mixing
- Forceps for handling the glucose test paper
- Milk-whole, skim or 1%
- Droppers
- Lactaid® (lactase source), the liquid form works best
- Glucose test strips
- Any glucose solution
- Any sucrose solution
- Paper models of enzyme, HOH, galactose, <a href="/chemical/27161/nojs" class="hilight_chem ctools-use-modal ctools-modal-smile-chem-modal-style">glucose</a>, lactose
Subjects
- Life Sciences
- Cells
- Chemistry of Life
- Human Body
- Digestion
- Health and Nutrition
- Cells
- Physical Sciences
- Chemistry
- Chemical Reactions
- Chemistry of Life
- Structure and Properties of Matter
- Chemistry
- The Nature of Science
- The Scientific Process
- Conducting Investigations
- Gathering Data
- Formulating Explanations
- Communicating Results
- The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- see color
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
- Crumlish, Jane
Rights:
- All Rights Reserved, Access Excellence @ the National Health Museum, ©2009
