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ATP EducationScience Exploration Notes Class 9 English Medium 2026-27
Science Exploration Notes Class 9 English Medium 2026-27 now available for students studying in cbse school, up board, state boards and international cbse schools and Latest CBSE Curriculum based on NCERT books.
Science Exploration Notes Class 9 English Medium 2026-27
All topics of Chapter 3 Tissues In Action
1. Chapter Review and Key Points 2. Meristematic Tissue 3. Simple Permanent Tissue 4. Complex Permanent Tissue 5. Tendon vs Ligament 6. Assignments - What Have You Learned?Science Exploration Chapter 3. Tissues in Action
CBSE Notes New Syllabus: Class 9
Assignments - What Have You Learned?
Chapter 3. Tissues in Action
This section completes the chapter by explaining how different tissues work together in plants and animals. It also includes important comparison tables, real-life applications, exam tips and quick revision points for CBSE examinations.
25. How Tissues Work Together
No tissue works independently in a multicellular organism. Different tissues coordinate with one another to perform complex life processes such as transport, growth, movement, protection and reproduction.
In Plants
- Meristematic Tissue – Produces new cells for growth.
- Parenchyma – Stores food and performs photosynthesis.
- Collenchyma – Provides flexibility to young stems and leaves.
- Sclerenchyma – Gives mechanical strength to mature plant parts.
- Xylem – Carries water and minerals from roots to leaves.
- Phloem – Transports prepared food to all parts of the plant.
In Animals
- Epithelial Tissue – Protects body surfaces and internal organs.
- Connective Tissue – Connects, supports and protects body parts.
- Muscular Tissue – Produces movement.
- Nervous Tissue – Controls coordination and responses.
26. Real-Life Applications of Tissues
The study of tissues is not limited to textbooks. It has several practical applications in medicine, agriculture and biotechnology.
Applications in Daily Life
- Bone Fracture Treatment – Knowledge of bone tissue helps doctors repair fractures.
- Blood Donation – Blood, a connective tissue, saves countless lives.
- Plant Grafting – Meristematic tissues help plants regenerate after grafting.
- Crop Improvement – Tissue culture is used to produce disease-free plants.
- Sports Medicine – Tendons and ligaments are treated to restore movement after injuries.
27. Frequently Confused Terms
| Term | Difference |
|---|---|
| Meristematic Tissue | Actively dividing tissue responsible for growth. |
| Permanent Tissue | Specialised tissue that has lost the power of division. |
| Xylem | Transports water and minerals. |
| Phloem | Transports prepared food. |
| Tendon | Connects muscle to bone. |
| Ligament | Connects bone to bone. |
| Skeletal Muscle | Voluntary muscle attached to bones. |
| Cardiac Muscle | Involuntary muscle found only in the heart. |
28. Important Differences
Meristematic Tissue vs Permanent Tissue
| Meristematic Tissue | Permanent Tissue |
|---|---|
| Cells divide continuously. | Cells do not divide. |
| Responsible for growth. | Performs specialised functions. |
| Small vacuoles. | Large vacuoles. |
| No intercellular spaces. | Intercellular spaces may be present. |
Tendon vs Ligament
| Tendon | Ligament |
|---|---|
| Connects muscle to bone. | Connects bone to bone. |
| Less elastic. | More elastic. |
| Provides stability during movement. | Stabilises joints. |
29. Memory Tricks
- P → Parenchyma → Packing & Storage
- C → Collenchyma → Curved Stem (Flexibility)
- S → Sclerenchyma → Strength
- X → Xylem → Water "X" Moves Upward
- P → Phloem → Prepared Food
- T → Tendon → To Muscle
- L → Ligament → Links Bones
30. Flow Chart
Cell → Tissue → Organ → Organ System → Organism
Meristematic Tissue → Differentiation → Permanent Tissue → Simple & Complex Permanent Tissue
Animal Tissues → Epithelial → Connective → Muscular → Nervous
31. One-Day Before Exam Revision
- Tissue – Group of similar cells performing the same function.
- Meristematic Tissue – Responsible for plant growth.
- Parenchyma – Storage and photosynthesis.
- Collenchyma – Flexibility and support.
- Sclerenchyma – Mechanical strength.
- Xylem – Water and mineral transport.
- Phloem – Food transport.
- Epithelial Tissue – Protection.
- Connective Tissue – Support and connection.
- Blood – Fluid connective tissue.
- Bone – Hard connective tissue.
- Cartilage – Flexible connective tissue.
- Skeletal Muscle – Voluntary movement.
- Smooth Muscle – Involuntary movement.
- Cardiac Muscle – Heart muscle.
- Neuron – Structural and functional unit of the nervous system.
32. ATP Education Chapter Summary
Multicellular organisms become efficient because similar cells perform specialised functions by forming tissues. In plants, tissues help in growth, storage, protection and transport, whereas in animals they provide protection, support, movement and coordination. Understanding tissues helps explain how complex organisms survive, grow and respond to their environment.
ATP Education Exam Booster
- Remember the four animal tissues: Epithelial, Connective, Muscular and Nervous.
- Remember the two complex plant tissues: Xylem and Phloem.
- Know all comparison tables because CBSE frequently asks competency-based questions from them.
- Learn the functions of every tissue instead of only memorising names.
- Practice labelled diagrams of neuron, xylem, phloem and different muscle tissues for better board exam preparation.