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PLANT TISSUE - Coggle Diagram

- - - - located below the bark of the tree
- - - - Conducting
        
        Xylem
        
        Phloem
        
        Sieve tubes
        
        features
        
        made up of long elongated cells
        
        placed end to end forming a tube like structure
        
        sieve plates are perforated
        
        help in the transport of food from leaves
        
        companion cells
        
        Phloem parenchyma
        
        Phloem fibers
        
        1 more item...
        
        features
        
        2 more items...
        
        features
        
        composed of living parenchyma cells
        
        help in functioning the sieve tube cells
        
        provides a passage for downward of food manufactured in the leaves. they also provide upward movement.
        
        Xylem vessels
        
        features
        
        long tube like structure meant for transport of water
        
        made up of elongated cells placed end to end
        
        cell walls are hard
        
        transverse walls get dissolved and make a continuous water pipe
        
        Xylem parenchyma
        
        Xylem fibers
        
        features
        
        made up of dead sclerenchyma cells
        
        thick walled
        
        long and narrow with tapering ends
        
        provide mechanical support
        
        features
        
        consists of living parenchyma cells
        
        serve for storage of food
        
        helps in the conduction of water and minerals
        
        Tracheid
        
        features
        
        made up of elongated dead cells with large empty cavities
        
        placed end to end making a tube like structure
        
        highly lignified cells
        
        provide mechanical support by developing thickenings
        
        cells are elongated and thick walled. these cells are in a tubular form. they provide upward movement of water and dissolved materials absorbed from the soil by the roots to other parts of the plants
        
        provide a passage for water and dissolved materials to move (transport) up and down
      - Collenchyma
        
        features
        
        elongated
        
        cell wall is thickened at the corners
        
        found in the leaf stalks and below the epidermis of the stem
      - Sclerenchyma
        
        features
        
        composed of long narrow cells
        
        dead cells
        
        very thick walls due to the presence of lignin
        
        provides strength
        
        found in stems and veins of the leaves
      - Parenchyma
        
        features
        
        large thin walled cells
        
        oval, circular or polygonal in shape
        
        usually a single vacuole is present
        
        found in soft parts of the plant
        
        may store food as in potatos
        
        provide temporary support to the plant
      - there are several types