America's Source for High School Sports and the leading volleyball organization team up to honor the nation's best. (Week of 9/2-10/4).
Phloem Structure Phloem is composed of several cell types including sclerenchyma, parenchyma, sieve elements and companion cells. The sieve element and companion cell are found closely associated with each other in what is referred to as the sieve element/companion cell complex.
Xylem and Phloem are the vascular tissues of plants. Xylem is the plant tissue that form the vessels that transport water and mineral salts absorbed from the soil to plant cells. Phloem is the plant tissue that forms the vessels that transport dissolved sugar from the leaves (where it is produced via photosynthesis) to other plant cells.