Biology Notes 2-29-08

Biology Notes 2-29-08 - evaporating and the pressure inside...

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Biology Notes February 29, 2008 Movement of water up the plant is generally through Adhesion-Cohesion Tension Theory. The plant has negative pressure and the water is pulled to the top of the plant. What affects negative pressure? -Heat, season, water accessibility, ion availability in soil. Humidity inside a plant is close to 100% at all times. Constriction occurs when it is 100% humidity outside the plant. The 100% humidity outside the plant stops water from
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Unformatted text preview: evaporating and the pressure inside the plant becomes positive. Plants leak water out on the edges of leaves to relieve pressure, this is known as guttation. This can also occur at night when the stomata close and the pressure builds up. Biology Notes February 29, 2008 Tracheids VS Vessel elements Pines and other conifers Flowering Plants Ion channels change cell pressure by pumping K+ in and now of cell....
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This note was uploaded on 05/02/2008 for the course BIOL 102 taught by Professor Hill/smith during the Spring '08 term at Idaho State University.

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Biology Notes 2-29-08 - evaporating and the pressure inside...

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