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Plant Tissues

Plant Tissues Synopsis

Synopsis

Levels of Organisation

  • Cell: The basic structural and functional unit of a living organism is called a cell. Examples: Nerve cell, muscle cell 
  • Tissue: A group of cells with a common origin and similar structure and function being held together by a cementing substance forms a tissue.
    Examples: Connective tissue, meristematic tissue 
  • Organ: Different types of tissues working together and contributing to some specific function of the body constitute an organ.
    Examples: Stomach, heart 
  • Organ system: Different organs coordinate to perform a specific life process and form an organ system.
    Examples: Digestive system, nervous system 
  • Organism: Various organ systems working simultaneously together constitute an organism.
    Examples: Plant, animal

Importance of Tissues

  • Formation of tissues ensures division of labour in multicellular organisms.
  • Tissues organise to form organs and organs form organ systems.
  • The workload of individual cells decreases due to the origin of tissues.
  • Improved organisation and higher efficiency ensure greater survival of multicellular organisms.

Differences between Plant and Animal Tissues

Plant Tissues

 
Meristematic Tissue
 
Classification of Meristematic Tissue

A. Based on Origin and Development
B. Based on Location in Plant Body