Vascular bundle – Xylem and phloem tissues, commonly known as leaf veins. Spongy mesophyll – Layer of parenchyma tissues loosely arranged to facilitate movement of oxygen, carbon dioxide ...

The leaf is one of the most important organs ... they also respire. Network of tubes (xylem and phloem) To transport water, mineral ions and glucose (food) around the plant. Lots of chloroplast ...

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.

from the adjacent xylem tissue (X, blue). This osmotic flow maintains elevated pressure in the phloem, and drives a bulk flow of water and sugars out of the leaf through the transport phloem (red ...