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Exploring Enzymes and Evolution Through Lactose Intolerance Kit

$111.90
(backordered: in stock 6/30/22)

Description

Provide a hands-on enzyme lab that incorporates real-world aspects about lactose intolerance. This lab integrates topics including evolution, single nucleotide polymorphisms, geography, physiology, and the use of controls. Students test baby formula, milk, and other controls in the presence and absence of lactase, and measure the activity of the enzyme by using glucose test strips. Materials are sufficient for 8 groups of students working in groups of 4.

Specifications

What’s Included:
  • 1 Sodium Phosphate Buffer pH 4, 25 mL
  • 1 Sodium Phosphate Buffer pH 6, 50 mL
  • 1 Sodium Phosphate Buffer pH 8, 25 mL
  • 1 Sodium Phosphate Buffer pH 9, 25 mL
  • 1 Lactose, 10 g
  • 1 Glucose, 0.3 g
  • 12 Lactase Tablets
  • 2 Glucose Test Strips, Pack of 100
  • 6 Color Charts (for glucose test strips)
  • 1 Dried Milk, 1 qt
  • 1 Dried Baby Formula, 1 Pack
  • 170 Microcentrifuge Tubes
  • 200 Bulb Pipets, 1 mL
  • 1 Teacher’s Manual with Reproducible Student Guide
  • expand to see full list
Needed But Not Included:
  • 1 Distilled or Deionized Water, 250 mL
  • 1 Paper Towels, Roll
  • 2 Bottles with Caps, 100 mL
  • 1 Bottle with Cap, 60 mL
  • 1 Bottle with Cap, 120 mL
  • 72 Tests Tubes with Caps (or other small capped containers, for aliquoting lactase suspension, sodium phosphate/lactose solutions of different pH, milk, baby formula, glucose control solution, and distilled or deionized water)
  • 1 Balance (accurate to 0.01g)
  • 8 Test Tube Racks
  • 8 Permanent Markers
  • 8 Microcentrifuge Tube Racks (optional)
  • 8 Pipetting Device and Pipets (optional, for aliquoting)
  • expand to see full list
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