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Transport in Plants - Coggle Diagram
Transport in Plants
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transport water and mineral ions, and support the plant’s overall structure.
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cells joined end to end with no cross walls to form a long, continuous tube
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They have an elongated shape for a larger surface area, which increases the water absorption rate by osmosis and ions by active transport.
The large surface area of root hairs is crucial as it increases the uptake of water and mineral ions.
Water enters root hair cells from moist soil via osmosis because water potential is higher in soil than in the cytoplasm.
Then, it enters into the root cortex cells, xylem, and lastly, the mesophyll cells.
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Translocation: Movement of sucrose and amino acids in the phloem from regions of production (sources) to regions of storage or regions of utilisation in respiration or growth (sinks).
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Summer & early autumn: sucrose goes from photosynthesizing leaves to root stores,
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Transpiration
Transpiration: loss of water vapour from leaves, which evaporates from the surface of the mesophyll cells into the air spaces and diffuses out of the leaves through the stomata.
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