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Biology
Transportation of Water and Mineral Salts
Biology
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Transportation of Water and Mineral Salts
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Factors that help water & salt movement in plants
Transpirational pull, capillary action & root pressure.
Transpirational pull
Produced when water that is evaporated from the stoma, pulls water from the leaves.
Capillary action
Produced from adhesion force and cohesion force of water molecules which moves water against gravity.
Root pressure
Moves water from the soil into the xylem vessel of the root via osmosis
Guttation
Secretion of water droplets through a special structure at the end of the leaf veins without involving the stomata caused by high root pressure.
Similarities of guttation & transpiration
Both processes occur through the leaf & cause permanent water loss from the plants.
Guttation happens at night and early morning
When the air humidity is high and the temperature is low.
Form of water released by guttation
Water droplets.
Water released by guttation process
Water that is rich in minerals.
Effects towards plants that do not undergo guttation
Cannot maintain effective root pressure, plant waste cannot be eliminated & may damage leaf veins.
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