the vascular tissues

• the transport system of a plant consists of specialised vascular tissue:

  water and soluble mineral ions travel upwards through the xylem

  assimilates like sugars can travel up and down via the phloem
• A dicotyledonous plant is a plant that has 2 seed leaves. They also have a very characteristic distribution of vascular tissue.
• the vascular bundle is found at the centre of a young root. There is a central core of xylem which is often in the shape of an X. The phloem is found in between the arms of the X shaped xylem tissue. This arrangement provides strength to withstand the pulling forces to which roots are exposed to.
• Surrounding the vascular bundle is a special sheath of cells called the endodermis. The endodermic ahs a key role in getting water into the xylem vessels. just inside of the endodermis is a layer of meristem cells called the pericycle.