The transport system in highly organized plants has two components. 1. Xylem and 2. Phloem

1. Xylem : In the xylem tissue, the ducts and vessels of the roots, stems and leaves join together to form a continuous network of water conduction vessels. These are attached to all parts of the plant. Xylem transports water and salts from the soil to the leaves.

2. Phloem : Phloem consists of sieve and companion cells that transport food from leaves to different parts of plants.