AP Biology Lab 5 Objectives: Measure the consumption of oxygen by germinating pea seeds Determine the respiration rate of dormant pea seeds Explore the effects of temperature on respiration rates

Note: Sold only to schools and businesses; cannot be shipped via USPS. The 8-Station Replacement Set includes all * items. Kit includes: Shallow Plastic Trays Metal Washers Transfer (dropping) Pipets Glass Beads Graduated Serological Pipets Alaska Pea Seed* Rubber Stoppers, #4 Forceps Sealant Bag Absorbent Cotton Balls* Potassium Hydroxide Solution, 15%* Bag Nonabsorbent Cotton Balls* Glass Vials (8 dram) Graduated Tubes Parafilm® Needed but not included: Thermometers Timers Ice

Use the links below to view the Material Data Safety Sheets (MSDS) for the item(s) on this page. MSDS will open in a new window, so please disable popup blockers. Potassium Hydroxide Solution, 15%

For AP® Biology Lab 5. After constructing simple respirometers that can measure small changes in gas volume, students place germinating peas in their respirometers and use KOH (potassium hydroxide) to absorb the carbon dioxide given off. They use the resulting rate of decrease of gas volume as a measure of the rate of cell respiration. Students also calculate the rate of cell respiration of different temperatures.

The 8-Station Kit contains enough materials for a class of 32 students working in groups of 4 to complete the lab. The 1-Station Kit includes materials for one lab group of 4 students. With instructions.

The 8-Station Replacement Set includes all * items.
(see SPECIFICATIONS tab for kit contents)