Monday, November 28, 2011

Movement of Water During Transpiration

Imagine a lonely little water molecule in the soil when , suddenly, it feels the pull of root pressure. It is then sucked up into the xylem of the plant and begins its travel. A water molecule up above is calling to the new molecules and attracts it to travel up, know as the process of cohesion. Another attraction befalls the water molecule and now its stuck to the wall of the plant, called adhesion. After travelling up the shoot by these methods that little water molecule will enter a leaf. It will travel in the leaf veins and eventually leave through a stomata back into the air.

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