A-level Biology TRANSLOCATION OF SUCROSE- mass flow hypothesis in plants and structure of the phloem

Learn how sugars are transported in plants. Translocation of organic substances, like sucrose, is transported to all cells in the plant through the phloem. Learn the structure of phloem tissues, companion cells and the sieve tube elements. Learn the source to sink model, mass flow hypothesis, translocation and the use of tracers and ringing experiments to investigate transport in plants.
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