The cambium and its "zone" is a cell generator (reproductive tissue called growth meristem) that produces both the inner bark cells of the phloem and new living wood cells in the xylem.

Specialised plant cells include root hair cells, palisade cells, xylem cells and phloem cells. Just like animals, plants are made of tiny little cells. Like animal cells, basic plant cells have a ...

The presence of sugars in the phloem drives an osmotic flow of water (blue arrows) from the adjacent xylem tissue (X, blue). This osmotic flow maintains elevated pressure in the phloem ...