Use the following points to compare transpiration and translocation

1. Principle substance(s) transported
2. Direction of transport
3. Tissue through which transport occurs
4. Name of model that explains the process
5. Does the plant expend energy to carry out the process? What will be an ideal response?


1. Transpiration: water and minerals; translocation: dissolved sugars
2. Transpiration: upward; translocation: both upward and downward
3. Transpiration: xylem; translocation: phloem
4. Transpiration: tension-cohesion (or transpiration-cohesion) model; translocation: pressure-flow
model
5. Transpiration: no; translocation: only to load/unload sugars

Biology & Microbiology

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