Posted by admin | Posted in Parts And Stuff | Posted on 01-10-2010
Tags: gravity water, gravity water filter, gravity water pressure, gravity water pump, gravity water system, physics, science, space, video, water
Gravity Water
How is it possible for water to defy gravity and travel from roots to the tops of palnts? use the cohesion exp?
How is it possible for water to defy gravity and travel from roots to the tops of palnts? use the cohesion explain your answer.
haha! I just wrote a whole essay on this!
Cohesion is the sticking of water to other polar substances like the xylem vessel of a tree. Water sticks to itself through adhesion and to other polar things through cohesion.
The main mechanism that powers this flow is water potential. Since the soil is wet and moist, water potential on the ground is higher than water potential in the shoots and leaves. The higher up the plant, the lower the water potential and this osmosis is a main factor at how water travels up.
Thus, when there is a pull for water from the leaves of a plant, water travels up connected to itself which adds more pull to the bottom.
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