Active translocation of sucrose in the phloem occurs as the sap solution becomes hypertonic due to solute accumulation, drawing water from the xylem. This increases hydrostatic pressure, forcing the sap to move via mass flow towards areas of lower pressure (sinks).
Active translocation of sucrose in the phloem occurs as the sap solution becomes hypertonic due to solute accumulation, drawing water from the xylem. This increases hydrostatic pressure, forcing the sap to move via mass flow towards areas of lower pressure (sinks).
| Front | description of active translocation of sucrose in phloem |
|---|---|
| Back | sap solution made hypertonic by solute accumulation, water drawn from xylem, due to incompressibility of water the hydrostatic pressure increases, sap forced to low pressure area (sink) by mass flow |
Tags: 9_2_phloem_transport
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