Biology A-Level
Mass flow hypothesis
What Mass flow hypothesis means in Biology A-Level, as defined for AQA.
Definition of Mass flow hypothesis
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Reference: AQA
Explains translocation as bulk flow driven by a hydrostatic pressure gradient, with sucrose actively loaded at the source and unloaded at the sink.
Topics that use Mass flow hypothesis
- Mass transport in plants (AQA A-Level)
Related terms
- cohesion
- companion cells
- Hydrostatic pressure gradients
- Ringing experiments
- Tracer experiments
- Transpiration
- adhesion to the wall
- sieve tube elements and sieve plates
Using Mass flow hypothesis in the exam
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