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AP® Biology Investigation #11: Transpiration


Students will study the process of transpiration/transpiration pull and the role it plays in water/
nutrient movement in plants. They will study the role of stomata in relation to the transpiration
process using a potometer to examine the rate of transpiration in a bean seedling
under a select set of environmental conditions. They will also examine the location/density
of stomata from a leaf surface by preparing a stomatal peel. Lastly students will design and
conduct an experiment to show how altering an environmental condition may affect the rate
of transpiration. Meets AP Science Practices 1, 2, 4, 6, and 7, and Big Idea 4. Materials
provided for 32 students in eight lab groups.


   
 

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