Question

explain how complex permanent tissues are formed in plants write in brief

Answer 1

Permanent tissues are simple or complex, according to the nature of component cells. A simple permanent tissue is composed of only one type of cells and is thus homogeneous; whereas the complex permanent tissue is heterogeneous, consisting of more than one type of cell elements.

Answer 2

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✔✔Tissues composed of more than one type of cells are called complex permanent tissues. There are two types of complex permanent tissues:-

⭕Xylem - Xylem is a vascular and mechanical tissue. it is composed of four different types of cells:- Tracheids, Vessels, Xylem parenchyma, Xylem sclerenchyma.
The cells have thick walls and many of them are dead cells. Tracheids and vessels are tubular structure. This allows them to transport water and Minerals vertically. The parenchyma stores food and helps in sideways conduction of water.

⭕Phloem - Phloem is made up of four types of elements:- Sieve tubes, Companion cells, Phloem Parenchyma and Phloem fibres. Except from phloem fibres phloem cells are living cells. Sieve tubes are tubular cells with perforated by numerous pores and are called sieve plates. Phloem transports food leaves to other plants of the plant.