KIT AP BIOLOGY #4 DIFFUSION AND OSMOSIS

Students will study the movement of water and nutrients across a cell membrane and observe osmosis in living tissue. They will then investigate the relationship between surface area and volume as it relates to cells and diffusion. They will also examine the concept of molarity and how it relates to osmotic potential and the movement of water. Students will also be able to explain how cell size and shape affect the overall rate of nutrient intake and water elimination. Students will also use plant tissue to determine the molarities of unknown solutions based on the direction and degree of water movement. This kit contains enough materials for 8 groups. Teacher’s manual and Student Study Guide copymasters are included. Meets AP® Science Practices 2, 4, and 5, and Big Idea 2. Kit Includes: 45g Agar 15mL Bromothymol Blue Concentrate 2x25mL 2.0M Hydrochloric Acid 40 pc. Dialysis Tubing 8 Agar Block Casting Trays 1 pkg Microscope Slides, pkg/72 8 Plastic Cups, 5oz Coverslips 40 Plastic Cups, 7oz 8 Plastic Knives Cork Borer 8 Plastic Stirrers 8 Metric Rulers Sucrose QuickSolution (to make 1L of 1.0M solution) Sodium Chloride QuickSolution (to make 1L of 1.0M solution) Glucose QuickSolution (to make 1L of 1.0M solution) Ovalbumin QuickSolution (to make 1L of 5.0% solution) Food Coloring set (red, blue, yellow, green) Sucrose QuickSolution set to make: 1L of 0.2M Solution (Solution #3) 1L of 0.4M Solution (Solution #2) 1L of 0.6M Solution (Solution #5) 1L of 0.8M Solution (Solution #1) 1L of 1.0M Solution (Solution #4) 1L Distilled Water (Solution #6) Materials Needed but not Supplied: Paper Towels Distilled or Deionized Water Electronic Balance Large Onion Fine-point Forceps/Tweezers Microscopes Potatoes, Sweet potatoes, or Yams DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only WARNING: This product can expose you to chemicals including Lead and lead compounds, which are known to the State of California to cause cancer and reproductive harm. For more information go to http://www.P65Warnings.ca.gov.