Biology › Section L · Plant form and physiology › Topic L.4
Transport of water and solutes
A plant moves water a hundred metres upward with no pump in sight, then ships sugars wherever they are needed - all by managing one number: water potential.
In this topic
- Two pipelines, one currency
- Four parts that sum to one gradient
- Solute and pressure: the adjustable pair
- Gravity and matric: the fixed pair
- Pull, don't pump: transpiration and cohesion-tension
- Guard cells and water-wise lifestyles
- Sources and sinks
- Translocation by pressure flow
- Worked example: the houseplant that rises again
- Worked example: which way does the water go?
- Common mistakes to avoid
- Key takeaways
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