NCERT Tissue – Class 9 Science

The chapter “Tissues” in NCERT Class 9 Science introduces the concept of a group of cells working together to perform a specific function. While cells are the basic units of life, in multicellular organisms, similar cells organize into tissues to carry out specialized roles more efficiently.

This chapter is divided into Plant Tissues and Animal Tissues. Plant tissues are broadly classified into meristematic tissues (apical, intercalary, and lateral), responsible for growth, and permanent tissues (simple and complex), which perform functions like support, transport, and food storage. Examples include parenchyma, collenchyma, sclerenchyma, xylem, and phloem.

Animal tissues, on the other hand, are classified into four main types: epithelial tissue (covering and lining), connective tissue (bone, cartilage, blood, adipose), muscular tissue (movement), and nervous tissue (transmission of impulses). Each type has a distinct structure and function, making the body work in a coordinated manner.

By studying this chapter, Class 9 students understand how tissues contribute to the growth, development, and functioning of living organisms. The detailed diagrams and examples in the NCERT book help in visualizing concepts clearly, making it an important chapter for both exams and building a foundation in Biology.