FlinnPREP™ Inquiry Labs for AP® Biology: Water Potential
By: The Flinn Staff
Item #: FB2032
In the Water Potential Inquiry Lab Solution for AP® Biology, students study the effect of salt on plant cells in order to form and test a hypothesis in an experiment.
Includes access to exclusive FlinnPREP™ digital content to combine the benefits of classroom, laboratory and digital learning. Each blended learning lab solution includes prelab videos about concepts, techniques and procedures, summary videos that relate the experiment to the AP® exam, and standards-based, tested inquiry labs with real sample data. FlinnPREP™ Inquiry Lab Solutions are adaptable to you and how you teach with multiple ways to access and run your AP® labs.
Big Idea 2, Investigation 4, Science Practices 2, 4, 5
Interactions between selectively permeable membranes, water and solutes are critical to all cellular and organism functions. Even ecosystems are affected by the flow of water into, through and out of plants and animals. Water and nutrients move through plant and animal cells due to differences in water potential.
In this Inquiry Lab Kit, students begin with a Baseline Activity that allows them to study the effect of salt on a typical plant cell using a compound microscope. Their observations provide the basis for the Opportunities for Inquiry section of the lab. Questions like, “How can water potential be determined for living plant tissues?” and “How would cooking affect water potential?” help guide and inspire students to develop a testable hypothesis and then design an experiment that they can plan, discuss, evaluate, execute and finally justify to their peers.
Includes detailed teacher notes, reproducible student handouts and enough materials for eight groups of students to complete the Baseline Activity and to prepare for the inquiry activity. Compound microscopes and 0.01-g precision balances are required and available separately. A purple onion and various tubers are also required.
Materials Included in Kit: Food dye, blue, 15 mL Food dye, green, 15 mL Food dye, red, 15 mL Food dye, yellow, 30 mL Sodium chloride solution, 10%, 200 mL Sucrose, 40 g Sucrose, lab grade, 500 g, 2 Cup, clear plastic, 9 oz, 50 Pipet, Beral-type, graduated, 16
Live Material: Various tubers and a purple onion (store items).
*Advanced Placement and AP are registered trademarks of the College Board, which was not involved in the production of, and does not endorse, these products.
Correlation to Next Generation Science Standards (NGSS)†
Science & Engineering Practices
Asking questions and defining problems Planning and carrying out investigations Developing and using models Analyzing and interpreting data Using mathematics and computational thinking Constructing explanations and designing solutions
Disciplinary Core Ideas
HS-PS2.A: Forces and Motion HS-PS3.B: Conservation of Energy and Energy Transfer HS-LS1.A: Structure and Function HS-LS1.B: Growth and Development of Organisms
Patterns Cause and effect Scale, proportion, and quantity Systems and system models Energy and matter Structure and function Stability and change
HS-LS1-2. Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms. HS-LS1-3. Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.