BIOL 206 Study Guide - Final Guide: Guard Cell, Xylem, Phloem

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12 Mar 2017
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Tracheids and vessel elements: what is transpiration and tension and cohesion. Transpiration of water molecules from leave by evaporation. Tension in xylem sap resulting from transpiration from the leaves. Cohesion of water molecules in the xylem sap from the leaves to roots: ____ holds water molecules together. Cohesion: the release of water in plants causing the change in water potential allowing for the movement of water in the xylem is best known as: Transpiration: describe how transpiration and cohesion are related. When plants release water through transpiration in the leaves, cohesion is responsible for moving more water through the xylem. Tension in xylem results from transpiration of leaves. As water evaporates from leaves the film of each leaf shrinks back into tiny spaces in the cell wall. There is plasmodesmata between guard cells but not between guard cells and other cells (they are isolated) Chloroplast the only epidermal cells with chloroplasts. Highly flexible walls reinforced with cellulose mivrofibrils.

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