lecture28F06 - Water Movement Through Plants By the end of...

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Water Movement Through Plants By the end of this lecture you should be able to… Describe the path of water through a tree. Concepts and terms: root, root hair, xylem, tracheid, pit, stem, leaf, stomata Discuss the properties of water relevant to its movement in plants. Concepts and terms: cohesion, adhesion, hydrogen bond Describe and differentiate diffusion, osmosis and bulk flow. Discuss the driving force causing water to move in plants. Concepts and terms: water potential, osmotic potential, pressure potential Describe the “Cohesion Theory” for the movement of water in plants. Describe the function and role of stomata in regulating water loss in plants. Provide an equation relating water movement in conduits to pressure and diameter. Concepts and terms: Hagen-Poiseulle law, hydraulic conductivity Describe a basic tradeoff in the capacity of plants to transport water Concepts and terms: embolism, cavitation Assigned Readings: Chapter 36
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The world's tallest tree has been found in California; a redwood named Hyperion.
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This note was uploaded on 04/07/2008 for the course IB 201 taught by Professor Hughes/berlocher during the Spring '07 term at University of Illinois at Urbana–Champaign.

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lecture28F06 - Water Movement Through Plants By the end of...

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