Question

What is the difference between simple permanent tissue and complex permanent tissue? Discuss different types of tissues found in complex permanent tissue.

Answer 1

• SIMPLE PERMANENT TISSUE:
  

It is formed from a group of permanent cells which are structurally and functionally similar and perform a common function.

Simple permanent tissue is classified into Parenchyma, Collenchyma and Sclerenchyma.

• COMPLEX PERMANENT TISSUE:
  

It is also called as compound tissue and is formed from different type of cells that perform a common function.

Complex permanent tissue is classified into Xylem and Phloem. These are conducting tissues.

1. XYLEM: It is a complex permanent tissue that performs the function of conduction of water and solutes from the roots to the top of the plant and is composed of four types of elements which are Tracheids, Vessels, Xylem fibres and Xylem parenchyma.
   
2. PHLOEM: It is a complex permanent tissue that performs the function of transporting organic food in plants and is composed of Sieve elements, Companion cells, Phloem fibres and Phloem parenchyma.