The transport system in highly organised plants consists of two components:(i) Xylem: Consists of vessels, tracheids and other xylem tissues. The interconnected vessels and tracheids form a continuous system of water conducting channels reaching all parts of the plant. Xylem conducts water and dissolved minerals absorbed from the soil.(ii) Phloem: Consists sieve tubes and companion cell which conduct soluble products of photosynthesis from leaves to different parts of the plant body. This transportation of prepared food material through pholem is called translocation.