Describe the elements of the xylem with the
Xylem is a complex tissue and it is made up of different types of cells which are as follows:- (a) Tracheids:- These are long tube-like structures. Perforation openings are absent. They are dead. Their function is to help in the conduction of water & minerals. (b) Vessels:- They are narrow tube-like structures. They have annular & spiral thickening in the protoxylem. They are wide and have Spira & pitted thickening in the metaxylem. They are dead. They help in the conduction of food and water from the roots to the upper parts of the plant (c) Xylem parenchyma: Xylem parenchyma are living cells. They are also known as wood parenchyma. Also, they help in the storage of food and in the transportation of substances. (d) Xylem Fibres:- Xylem fibers are long, pointed, dead sclerenchymatous cells. They are also known as wood fibers. They provide support and strength to the plant.
