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plant tissues (Meristematic Tissue : A region of rapid growth (1-Apical…

- - - - tubular cells that are stacked end-to-end, form- ing strands of xylem called vessels
      - typically found in flowering plants (angiosperms) but absent from most gymnosperms
    - - Tracheids are long, cylindrical cells with pitted ends. The cells are found end-to-end and form a tubelike strand.
  - - - two types cells
        
        sieve tube member
        
        companion cells
- - - - carbon dioxide, water, oxygen, and other gases pass.
      - small openings
      - The two cells that form a stoma are guard cells
      - found on leaves
    - - hairlike projections, fuzzy appearance
      - Function
        
        protect the plant from insect and animal predators.
        
        release toxic substances when touched
        
        some plants cool by reflecting light.
      - found on leaves and stems
    - - secrete a fatty substance that forms the cuticle.
      - functions
        
        reduce water loss from plants by slowing evaporation.
        
        prevent bacteria and other disease-causing organisms from entering a plant.
    - - fragile extensions of root epidermal cells.
      - increase a root’s surface area
        
        to take in a greater volume of materi- als