Translocation
Science: KS3, topic 1.5.7
Translocation
Translocation is the process by which food produced in photosynthesis is transported from the leaves to the growing regions of plants and storage organs. Features of translocation are:
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Phloem tubes
- Translocation happens through phloem tubes.
- Phloem tubes are made up of columns of elongated cells that have holes in the end walls.
- These holes allow cell sap (a liquid in plants that stores sugars, salts and amino acids) to pass between the cells.
Bidirectional
- Unlike water transport (transpiration), translocation is bidirectional (movement is both up and down the plant).
Test yourself on Translocation
What is cell sap, the liquid that moves through phloem tubes?
How do transpiration and translocation differ?
How does translocation differ from water transport (transpiration) in a plant?
What would happen if phloem tubes in a plant's stem were blocked?