Biology A-Level
Hydrostatic pressure gradients
What Hydrostatic pressure gradients means in Biology A-Level, as defined for AQA.
Definition of Hydrostatic pressure gradients
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Reference: AQA
Loading sucrose at the source lowers water potential so water enters by osmosis, raising pressure, while unloading at the sink causes water to leave and pressure to fall.
Topics that use Hydrostatic pressure gradients
- Mass transport in plants (AQA A-Level)
Related terms
- cohesion
- companion cells
- Mass flow hypothesis
- Ringing experiments
- Tracer experiments
- Transpiration
- adhesion to the wall
- sieve tube elements and sieve plates
Using Hydrostatic pressure gradients in the exam
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