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7-7 Transport of Water & Minerals up the Xylem Vessels (Cambridge AS A Level Biology, 9700)
Adhesion: Water molecule sticks to the xylem vessel wall Cohesion: Water molecules stick to each other 1. Water and minerals form a long continuous chain due to adhesion and cohesion 2. Transpiration in leaf causes water to move out from the TOP of the xylem vessel 3. This creates a tension (negative/lower pressure) at the top of the xylem. 4 ...
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