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Grades 912. Students use molecular models to build the macromolecules found in all living organisms. They conduct basic chemical tests for macromolecules and model the enzymatic digestion of starches and proteins. Finally, students design an investigation to measure how environmental factors influence the rate of hydrogen peroxide decomposition by the enzyme catalase. Materials are sufficient for 30 students working in groups of 3.
Grades 912. Students model how carbon can form straight, branched, and ring-shaped compounds, and how monomers of simple sugars can combine to form macromolecules of starches, glycogen, and cellulose. They also model how fatty acids can combine with glycerol to form lipids, and learn how to determine by their structure whether they are saturated or unsaturated. Model amino acids are built and joined to make proteins.
Perform chemical tests
Conduct testing of sugars, starches, and proteins with Benedict’s solution, IKI, and biuret solution. Your students also investigate how specialized proteins known as enzymes can act as catalysts in living organisms to speed up chemical reactions. As their Extend activity, students design an investigation to measure how environmental factors influence the rate of hydrogen peroxide decomposition by the enzyme catalase.
Kit materials are sufficient for 30 students working in groups of 3. Receive a FREE digital teacher’s manual and student guide with kit purchase.
|Molecular Model Sets||5||Included|
|Dry Yeast Packs||2||Included|
|Hydrogen Peroxide, 3%, 473 mL||2||Included|
|Starch Solution, 1%, 120 mL||2||Included|
|Glucose, 18.75 g||1||Included|
|Albumin Powder, 29.2 g||1||Included|
|Benedict’s Solution, 75 mL||1||Included|
|Biuret Solution, 100 mL||1||Included|
|Iodine-Potassium Iodide, 30 mL||1||Included|
|Pepsin, 0.5 g||2||Included|
|0.1 M Hydrochloric Acid, 250 mL||1||Included|
|Pancreatin, 4.0 g||1||Included|
|Y-Plate Petri Dishes||10||Included|
|Filter Papers, 12.5 cm||100||Included|
|Small Plastic Cups||110||Included|
|Large Plastic Cups||10||Included|
|Teacher’s Manual with Reproducible Student Guide||1||Included|
|Distilled Water, 1 L||1||Needed, Not Included|
|Thermometers||10||Needed, Not Included|
|Timers||10||Needed, Not Included|
|Test Tube Tongs||5||Needed, Not Included|
|Test Tube Racks||5||Needed, Not Included|
|Graduated Cylinders, 10 mL||10||Needed, Not Included|
|Graduated Cylinder, 100 mL||1||Needed, Not Included|
|Beakers, 250 mL||2||Needed, Not Included|
|Permanent Markers||10||Needed, Not Included|
|Metric Rulers||10||Needed, Not Included|
|Beakers, 150 mL||20||Needed, Not Included|
|Hot Plates or Burners||10||Needed, Not Included|
|Tap Water||Needed, Not Included|
|Ice (optional)||Needed, Not Included|