Enzymes and Lactose Intolerance

Catalog #STO-119

How do enzymes help people with lactose intolerance?

Time To Complete Time to complete: Two 40-minute class periods + homework

How does the dietary supplement LACTAID work to help people with lactose intolerance?

  • Model the action of the enzyme lactase.
  • Conduct tests to determine whether LACTAID, an enzyme supplement, digests lactose.
  • Design and conduct an experiment to determine if acid interferes with the action of the enzymes in LACTAID.
Teacher Guide Know Before You Buy! Download Teacher Guide

Limit 1 free sample per customer

Quantity Price
1 - 9$14.00 ea.
10 - 24$13.30 ea.
25 - 1000$12.60 ea.

Each assembled kit contains:

  • Student instructions
  • 1 LACTAID capsule
  • 1 empty tube labeled “LACTAID”
  • 1 empty tube labeled “water”
  • 1 tube of Powdered Milk
  • 1 tube of Glucose
  • 1 tube of “Acid” (white vinegar)
  • 5 labeled droppers
  • 12 toothpicks
  • 2 test strips
  • 12 pieces of glucose indicator paper

Also required: Scissors, tape, water, safety goggles

Buy Unassembled and Save!

Refill Your Kit

Enzymes and Lactose Intolerance – Pack of 10 Unassembled Kits

Catalog # STO-119U

Unassembled packs contain materials for 10 kits.

  • All supplies, lab materials, and printed labels
  • Student instructions copy master
  • Easy to follow instructions for kit assembly
Quantity Price
1 - 9$98.00 ea.
10 - 1000$93.10 ea.

Enzymes and Lactose Intolerance – 10 Kit Refill Pack

Catalog # STO-119R

Refill packs contain materials to replace consumable supplies for 10 kits.

Quantity Price
1 - 9$45.00 ea.
10 - 1000$42.75 ea.

Teacher Testimonial

For several weeks we have done about 3 – 4 kits a week and my students have loved the pace and activity. To see their faces recognize change and surprise is priceless.

- 7th-8th grade science teacher (TX)

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STO-119