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Product 14172

By: The Flinn Staff

Lactose Intolerance Biochemistry Demonstration Kit
lactose, glucose, galactose, disaccharaides, monosaccharides
yeast cells, lactose intolerant, reaction time
Lactose Intolerance Biochemistry Demonstration Kit
lactose, glucose, galactose, disaccharaides, monosaccharides
yeast cells, lactose intolerant, reaction time
Lactose Intolerance Demonstration Kit for biochemistry shows an over-the-counter enzyme Lactaid™ (lactase) in action. Enough materials for seven demonstrations.

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Product Details

Intestinal gas—not a very pleasant thought! Gas can be a big problem for those who lack the enzymes to digest certain foods. Do products that advertise to eliminate this problem really work? This demonstration kit shows an over-the-counter enzyme Lactaid™ (lactase) in action! Flasks containing various sugar combinations with and without Lactaid™ are compared for gas production by yeast cells. Balloons inflate very quickly when digestible sugars are available to the lactose intolerant yeast cells. Inflated and non-inflated balloons dramatically illustrate the concept and consequences for students.

Concepts: Enzymes, disaccharaides, monosaccharides.
Time Required: One class period

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Analyzing and interpreting data

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter

Crosscutting Concepts

Patterns

Performance Expectations

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.