complex permanet tissue
Asked by arthesthleo | 5th Sep, 2008, 08:12: PM
In vascular plants, xylem is one of the two types of transport tissue, phloem being the other.he xylem is responsible for the transport of water and soluble mineral nutrients from the roots throughout the plant. It is also used to replace water lost during transpiration and photosynthesis. Xylem sap consists mainly of water and inorganic ions, although it can contain a number of organic chemicals as well.
In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose, a sugar, to all parts of the plant where needed. In trees, the phloem is the innermost layer of the bark, "bark". The phloem is mainly concerned with the transport of soluble organic material made during photosynthesis. This is called translocation.
Answered by | 5th Sep, 2008, 08:29: PM
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