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Plant tissue - Coggle Diagram

- - - - Primary growth
  - - - Produces cells that form protective outside layer on stems and roots
    - - thin cylinder of meristematic tissue
      - produces new transport cells in root and stems
- - - - Companion cells
        
        Occurs next to sieve tube cells and have a nucleus
      - Sieve tube membranes
        
        Contains cytoplasm but lack nucleus and ribosome when mature
- - - - most flexible thin walled cells
      - can undrergo cell division once matures
      - function: gas exchang photosynthsis storage’
    - - function: transport material, provide support
      - Classified as sclerelds or fibers
        
        sclereds also called stone cellsshort and irregulary shaped
        
        fibers are needle shaped
      - very thick cell walls that die once matured
      - when they mature they lack cytoplasm
    - - elongated and occur in long strands
      - have unevenly thickened cell walls
      - alive at maturity
      - provide support for the surrounding cells