BRAINCAKECohesion and Surface Tension of Water
Cohesion is the sticking together of water molecules. Cohesion in water molecules is due to hydrogen bonding between the molecules. It is the mechanism by which water is pulled up the xylem in plants.
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Key terms in this lesson
- hydrogen bond
- A weak electrostatic attraction between a slightly positive hydrogen atom on one polar molecule and a slightly negative atom, such as oxygen or nitrogen, on another.
- xylem
- Plant vascular tissue, made of dead, lignified tubular cells, that transports water and mineral ions from the roots to the leaves.
More in Nucleic Acids
- ATP
- ATP Synthesis
- Roles of ATP
- Water and Hydrogen Bonding
- Specific Heat Capacity of Water
- Latent heat of Vaporisation of Water
- The Importance of Water
- Inorganic Ions
All 18 lessons in Nucleic Acids · All AQA AS-level Biology topics