Plant Tissue Definition and Types

Plant Tissue Definition

• A group of similar cells that perform a specific function in a plant

Types of Plant Tissues

• Meristematic Tissue: Undifferentiated cells that can differentiate into different types of cells
  • Found in areas of active growth, such as shoot and root tips
  • Can divide to produce new cells
• Permanent Tissue: Differentiated cells that have a fixed function
  • Can be classified into three main types: simple, complex, and specialized

Simple Tissues

• Parenchyma: Thin-walled cells that can perform various functions, such as storage, photosynthesis, and secretion
  • Found in leaves, stems, and roots
• Collenchyma: Cells with thick, flexible walls that provide support and structure
  • Found in stems, petioles, and leaves
• Sclerenchyma: Cells with thick, rigid walls that provide mechanical support and protection
  • Found in stems, branches, and roots

Complex Tissues

• Xylem: Conducting tissue that transports water and minerals from roots to leaves
  • Composed of tracheids, vessels, and xylem parenchyma
• Phloem: Conducting tissue that transports sugars and other organic compounds from leaves to roots
  • Composed of sieve cells, companion cells, and phloem parenchyma

Specialized Tissues

• Epidermal Tissue: Protects the plant from water loss, pathogens, and mechanical damage
  • Found on the surface of leaves, stems, and roots
• Vascular Tissue: Specialized tissue that transports water, minerals, and organic compounds
  • Found in stems, leaves, and roots
• Ground Tissue: Fills the space between epidermal and vascular tissues
  • Provides support, storage, and photosynthesis

Plant Tissue Definition

• A group of similar cells that perform a specific function in a plant

Types of Plant Tissues

• Meristematic Tissue: Undifferentiated cells that can differentiate into different types of cells, found in areas of active growth, such as shoot and root tips
• Permanent Tissue: Differentiated cells that have a fixed function, can be classified into three main types: simple, complex, and specialized

Simple Tissues

• Parenchyma: Thin-walled cells that can perform various functions, such as storage, photosynthesis, and secretion, found in leaves, stems, and roots
• Collenchyma: Cells with thick, flexible walls that provide support and structure, found in stems, petioles, and leaves
• Sclerenchyma: Cells with thick, rigid walls that provide mechanical support and protection, found in stems, branches, and roots

Complex Tissues

• Xylem: Conducting tissue that transports water and minerals from roots to leaves, composed of tracheids, vessels, and xylem parenchyma
• Phloem: Conducting tissue that transports sugars and other organic compounds from leaves to roots, composed of sieve cells, companion cells, and phloem parenchyma

Specialized Tissues

• Epidermal Tissue: Protects the plant from water loss, pathogens, and mechanical damage, found on the surface of leaves, stems, and roots
• Vascular Tissue: Specialized tissue that transports water, minerals, and organic compounds, found in stems, leaves, and roots
• Ground Tissue: Fills the space between epidermal and vascular tissues, provides support, storage, and photosynthesis