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Enzyme, Digestion, Osmosis Kit

Item # 684056

Grade 9–College. The 2 exercises in this kit allow students to investigate fundamental principles of digestion, osmosis, and diffusion. Kit materials are sufficient for a class of up to 32 students working in pairs.

Price

$217.00

In stock and available to ship.

Grade 9–College. The 2 exercises in this kit allow students to investigate fundamental principles of digestion, osmosis, and diffusion. In the 1st exercise, students test the osmotic rates of urea, sucrose, and glucose solutions in the presence or absence of urease and invertase. This determines how the presence of the enzymes affects the osmotic rates of the solutions. In the 2nd exercise, students use m-cresol purple pH indicator to test for the presence of ammonia, an indication of hydrolysis of urea by urease. Different groups will test different solutions and then pool their data. For a class of up to 32 students working in pairs.

Product Families Featuring This Item:

 
Components Qty Included?
Osmometers 16 Included
Culture Tubes 16 Included
Pipets 16 Included
Rulers 16 Included
m-Cresol Purple pH Indicator 1 Included
Dropper Bottles (for urea and urease solutions) 2 Included
1.0 M Sucrose Solution 1 Included
0.5 M Sucrose Solution 1 Included
1.0 M Glucose Solution 1 Included
1.0 M Urea Solution 1 Included
Urease Solution with Buffer, 0.4% 1 Included
Enzymatic Urease Powder 3 Included
Enzymatic Invertase Powder 3 Included
Teacher's Manual and Reproducible Student Guide 1 Included
Beakers (150 mL or larger) 25 Needed, Not included
Distilled or Deionized Water, 8 L 1 Needed, Not included
Test Tube Racks or Beakers (to hold tubes) Needed, Not included
Markers Needed, Not included
Paper Towels Needed, Not included
Wash Bottles (optional) Needed, Not included
Adhesive Tape (optional) Needed, Not included
 

Correlations to State Standards

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