Tissues

• Tissues

  Groups of cells that work together to perform a specific function in an organism
• Tissues

  • They are the building blocks that form organs and systems
  • They allow for the specialization of cells to perform specific functions efficiently
  • They are organized into organs and systems, providing a higher level of function and coordination
  • Connective and dermal tissues provide structural support and protection to the organism
  • Meristematic tissues in plants and certain animal tissues (like stem cells) play a crucial role in growth and repair
• Types of Plant Tissues

  • Meristematic
  • Dermal
  • Ground
  • Vascular

  
• Meristematic tissue


  Undifferentiated, actively dividing cells responsible for plant growth

  
• Meristematic tissue


  • Types: Apical, Lateral, and Intercalary meristems

  
• Dermal tissue


  Protective outer covering, including epidermis and periderm

  
• Dermal tissue


  • Functions: Protection, gas exchange, and water retention
  • Example: Guard cells in stomata
• Ground tissue


  Fills the interior of the plant, including parenchyma, collenchyma, and sclerenchyma

  
• Ground tissue


  • Functions: Photosynthesis, storage, and support
• Vascular tissue

  Transport system of the plant, including xylem and phloem

  
• Vascular tissue


  • Xylem transports water and minerals
  • Phloem transports sugars and nutrients
  • Functions: Transports water, minerals, and nutrients throughout the plant
• Types of Animal Tissues

  • Epithelial
  • Connective
  • Muscle
  • Nervous
• Epithelial tissue


  Tightly packed cells that cover body surfaces