posted by Shane .
Describe two differences between xylem and phloem.
Transportation of food and nutrients such as sugar and amino acids from leaves to storage organs and growing parts of plant. This movement of substances is called translocation.
Water and mineral transport from roots to aerial parts of the plant.
Bidirectional (Moves up or down the plant's stem from "source to sink")
Unidirectional (Moves up the plant's stem)