What is Tissues Class 9: Complete Guide for NCERT Science
By ConceptScroll Team · Published on 19 June 2026 · 4 min read
In Class 9 Science, 'what is tissues class 9' refers to groups of similar cells working together to perform specific functions. This chapter explains plant and animal tissues, their types, and importance as per the NCERT syllabus.
Definition and Importance of Tissues in Class 9 Science
Tissues are groups of cells that are similar in structure and perform a common function. In Class 9 NCERT Science, tissues form the foundation of understanding how plants and animals grow and function.
- Cells alone cannot perform all life functions efficiently.
- Grouping of cells into tissues increases efficiency.
- Tissues help in support, transport, protection, and movement.
Studying tissues helps students understand the complexity of living organisms beyond the cellular level.
Types of Plant Tissues: Meristematic and Permanent
Plant tissues are mainly divided into two categories:
1. Meristematic Tissues
- Consist of actively dividing cells.
- Responsible for plant growth.
- Found at tips of roots, shoots, and stems.
2. Permanent Tissues
- Cells that have lost the ability to divide.
- Perform specific functions like support and transport.
Permanent tissues are further classified as:
- Simple Permanent Tissues: Parenchyma, Collenchyma, Sclerenchyma
- Complex Permanent Tissues: Xylem and Phloem
| Tissue Type | Characteristics | Function |
|---|---|---|
| Parenchyma | Thin-walled, loosely packed cells | Photosynthesis, storage |
| Collenchyma | Thickened cell walls at corners | Support in growing parts |
| Sclerenchyma | Thick, lignified walls, dead cells | Mechanical support |
| Xylem | Vessels and tracheids | Water transport |
| Phloem | Sieve tubes and companion cells | Food transport |
Want to test yourself on Tissues? Try our free quiz →
Animal Tissues: Four Main Types Explained
Animal tissues are classified into four main types based on their structure and function:
1. Epithelial Tissue
- Covers body surfaces and lines cavities.
- Protects underlying tissues.
2. Connective Tissue
- Supports and connects different parts of the body.
- Includes bone, cartilage, blood, and adipose tissue.
3. Muscular Tissue
- Responsible for movement.
- Types: Skeletal, Smooth, and Cardiac muscles.
4. Nervous Tissue
- Transmits electrical impulses.
- Controls body functions.
Each tissue type plays a vital role in maintaining the animal body's structure and function.
Functions of Xylem and Phloem in Plants
Xylem and phloem are complex permanent tissues responsible for transport in plants:
- Xylem transports water and minerals from roots to leaves.
- Phloem transports food (mainly sugars) from leaves to other parts.
Xylem Components:
- Tracheids
- Vessels
- Xylem fibers
- Xylem parenchyma
Phloem Components:
- Sieve tubes
- Companion cells
- Phloem fibers
- Phloem parenchyma
Worked Example: If a plant loses its xylem vessels, it cannot transport water efficiently, leading to wilting.
This shows the importance of xylem in maintaining plant health.
Comparison of Plant and Animal Tissues
Understanding the differences between plant and animal tissues helps clarify their unique roles.
| Feature | Plant Tissues | Animal Tissues |
|---|---|---|
| Cell Wall | Present (cellulose) | Absent |
| Types | Meristematic, Permanent | Epithelial, Connective, Muscular, Nervous |
| Function | Support, transport, growth | Protection, movement, support, control |
| Growth | Continuous (meristematic regions) | Limited after development |
This table highlights how tissues adapt to organism needs.
How Tissues Are Studied in Class 9 NCERT Science
In Class 9 NCERT Science, the chapter on tissues focuses on:
- Definitions and classifications.
- Structure and functions of major tissues.
- Simple diagrams and examples.
- Importance for understanding plant and animal biology.
Students should:
- Memorize key tissue types and their functions.
- Practice drawing labeled diagrams.
- Solve NCERT textbook exercises.
This preparation helps in scoring well in exams and building a strong foundation in biology.
Frequently asked questions
What is tissues in Class 9 Science?
Tissues are groups of similar cells that perform a specific function in plants and animals.
Name two types of plant tissues.
Plant tissues are mainly meristematic and permanent tissues.
What is the function of xylem?
Xylem transports water and minerals from roots to other parts of the plant.
Which animal tissue helps in movement?
Muscular tissue is responsible for movement in animals.
Why are tissues important for living organisms?
Tissues increase efficiency by grouping cells to perform specific functions.
Ready to ace this chapter?
Get the full Tissues chapter — interactive notes, diagrams, worked solutions, polls and a free practice quiz — in the ConceptScroll app.
Study smarter with ConceptScroll
Daily NCERT-aligned reels, AI doubt solving and chapter quizzes — all free.
Start learning free