PHLOEM is a type of plant tissue that transports food and other substances throughout the plant. It consists of two types of cells, the sieve tube elements and the companion cells. The sieve tube elements are responsible for transporting the substances, while the companion cells provide metabolic support. BAST is a type of fiber obtained from the phloem of certain plants, such as flax and hemp. It is used in the production of textiles, paper, and rope.