Biology, asked by labib09abdullah, 1 month ago

why is phloem more suitable for translocation than any other plant tissue?​

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Answered by sramvinoba
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Phloem (/ˈfloʊ.əm/, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular the sugar sucrose,[1] to parts of the plant where needed. This transport process is called translocation.[2] In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Greek word (phloios) meaning "bark". The term was introduced by Carl Nägeli in 1858.

Phloem of pine trees has been used in Finland and Scandinavia as a substitute food in times of famine and even in good years in the northeast. Supplies of phloem from previous years helped stave off starvation in the great famine of the 1860s which hit both Finland and Sweden (Finnish famine of 1866-1868 and Swedish famine of 1867–1869). Phloem is dried and milled to flour (pettu in Finnish) and mixed with rye to form a hard dark bread, bark bread. The least appreciated was silkko, a bread made only from buttermilk and pettu without any real rye or cereal flour. Recently, pettu has again become available as a curiosity, and some have made claims of health benefits. However, its food energy content is low relative to rye or other cereals

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