| Front | Explain the cohesion-tension system in the xylem |
|---|---|
| Back | - water forms continuous column down the xylem - as water evaporates from mesophyll cells - more is drawn up the xylem due to cohesion - water molecules stick together due to hydrogen bonding - adhesion causes water molecules to stick to xylem walls - transpiration pull creates causes tension (negative pressure) in xylem - reduces diameter |
Tags: plant_transport
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