Relacionar Columnas Tree Parts Matching Versión en línea Match each tree part to the appropriate description por Samantha Foster 1 Inner Bark 2 Sapwood 3 Heartwood 4 Outer Bark 5 Cambium Cell layer that produces new bark (phloem) and new wood (xylem) every year. Dead phloem cells that protect the tree from diseases and insects. The living xylem that transports water and nutrients up from the roots. Scientific name phloem; supply line that carries food from leaves to branches, stems and roots. Composes most of the trunk and is made up of dead xylem cells; is like the backbone that supports the tree.