Tissues | Biology Class 9 Science | Types of Plant & Animal Tissues #kidslearning

🧬 What are Tissues? Why are they important in living organisms? In this Class 9 Biology lesson, we will explore different types of tissues in plants and animals, their structure, functions, and importance. A tissue is a group of similar cells that work together to perform a specific function. Tissues form organs, and organs form organ systems. Example: Muscle tissues contract to help in movement. Xylem tissues transport water in plants. Types of Tissues Plant Tissues Animal Tissues 1. Plant Tissues Plant tissues are classified into two main types: A. Meristematic Tissue (Growth Tissues) Found in the growing parts of plants like root and shoot tips. Cells continuously divide to form new cells. Types of Meristematic Tissue: Apical Meristem: Found at root & shoot tips → Helps in growth. Lateral Meristem: Found in stem → Helps in increasing thickness. Intercalary Meristem: Found at nodes → Helps in growth between nodes. B. Permanent Tissue (Mature Tissues) Formed from meristematic tissue when cells stop dividing. Function: Protection, transport, storage, support. Types of Permanent Tissue: Simple Permanent Tissue (Made of One Type of Cell) Parenchyma – Stores food (e.g., in potatoes). Collenchyma – Provides flexibility & support. Sclerenchyma – Provides strength (e.g., coconut husk). Complex Permanent Tissue (Made of Different Types of Cells) Xylem – Transports water (Vessels, Tracheids, Fibres, Parenchyma). Phloem – Transports food (Sieve tubes, Companion cells, Fibres, Parenchyma). 2. Animal Tissues Animal tissues are classified into four main types: A. Epithelial Tissue (Protective Tissue) Covers body surfaces and internal organs. Functions: Protection, absorption, secretion, sensation. Types of Epithelial Tissue: Squamous Epithelium – Thin & flat (e.g., lungs). Cuboidal Epithelium – Cube-shaped (e.g., kidney tubules). Columnar Epithelium – Tall cells (e.g., intestine lining). Ciliated Epithelium – Has cilia to move particles (e.g., respiratory tract). Glandular Epithelium – Produces secretions (e.g., salivary glands). B. Connective Tissue (Binding & Supporting Tissue) Joins different body parts, transports substances, and provides support. Types of Connective Tissue: Bone – Hard, supports the body. Cartilage – Soft, flexible (e.g., ear, nose). Tendons – Connect muscle to bone. Ligaments – Connect bone to bone. Areolar Tissue – Fills spaces in the body. Adipose Tissue – Stores fat. Blood – Transports oxygen, nutrients, and waste. C. Muscular Tissue (Movement Tissue) Helps in movement by contracting & relaxing. Types of Muscle Tissue: Skeletal Muscles – Voluntary, striated (e.g., arm muscles). Smooth Muscles – Involuntary, non-striated (e.g., intestine walls). Cardiac Muscles – Involuntary, striated (e.g., heart muscles). D. Nervous Tissue (Control & Coordination Tissue) Made of neurons (nerve cells). Function: Sends signals between the brain, spinal cord, and body. Helps in reflex actions and thinking. Comparison: Plant vs. Animal Tissues Feature Plant Tissues Animal Tissues Growth Continuous (Meristematic) Stops after maturity Movement No movement Helps in movement Support Provided by cell walls Provided by bones & muscles Transport Xylem (water), Phloem (food) Blood (oxygen, nutrients) Nervous System Absent Present (Nervous Tissue) Importance of Tissues Specialization: Different tissues perform specific functions efficiently. Structural Support: Provides shape & strength. Transport: Carries water, nutrients, oxygen. Protection: Shields organs & prevents infections. Growth & Repair: Helps in healing wounds. Conclusion Tissues are essential for the functioning of plants and animals. They help in growth, movement, protection, and transport. Understanding different tissues helps us learn how living organisms function efficiently. 📚 Perfect for: Students studying CBSE, ICSE, and State Board Science, especially the Tissues chapter in Class 9 Biology. 💡 Don’t forget to LIKE, SHARE & SUBSCRIBE for more educational content! 🔔 #kidslearning #schoolprokid #Tissues #Class9Biology #CBSEScience #PlantTissues #AnimalTissues #CBSETissues #ScienceForClass9