what are complex tissue name them
Answers
The complex tissue consists of more than one type of cells which work together as a unit. Complex tissues help in the transportation of organic material, water, and minerals up and down the plants. That is why it is also known as conducting and vascular tissue.
Answer:
Complex tissue: Complex tissues are made of more than one type of cells. All these cells
coordinate to perform a common function.
There are two types of complex tissues- Xylem and Phloem.
They are both conducting tissues and constitute a vascular bundle.
Xylem: Xylem is a complex vescular tissue which is in all parts such as root, stem and leaf of the plant. It is composed of several types of cells. Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres.
The cells of this tissue have thick walls and many of them are non-living.
(i) Tracheids: These are long elongated tubular cells. Tracheids cells are dead. They are found in all vascular plants. Its main function is conduction of water and minerals from root to stem.
(ii) Vessels: These are pipe-like structure. Vessels are dead and have lignified cell wall. They also participate conduction of water and minerals.
(iii) Xylem parenchyma: These are simple parenchyma found in the xylem. These are living cells which store food material.
(iv) Xylem fibres: These are dead cells which provide mechanical support to the plant.
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