Cards (25)

    • With the exception of simple plants such as algae, fungi, mosses and liverworts, all plants are vascular plants
    • Vascular plants
      Plants that have a complex system of special fluid-carrying tissue called vascular tissue
    • Vascular tissue
      • Special tissue which runs throughout a vascular plant
      • Carries fluids
      • Helps to support the plant
    • In young stems, vascular tissue is usually arranged in separate units called vascular bundles
    • In older stems, vascular tissue can form a continuous cylinder
    • Xylem
      A tissue which carries water and minerals from the roots to the rest of the plant
    • Xylem in flowering plants
      • Contains tracheids with long, narrow cells
      • Provides support between the roots and leaves
    • Some plants have only tracheids in their xylem
    • Vessels and tracheids
      Tubes in the xylem whose walls are strengthened by lignin
    • Vessels are wider than tracheids
    • Cambium
      A layer of tissue in vascular plants that produces new xylem and phloem cells
    • Laminar - Flat; having the form of a leaf.
    • Lamina (pl. laminae) - The blade or expanded part of an organ.
    • Vascular tissue
      • Xylem
      • Phloem
    • Primary tissue
      The first tissue formed by a new plant
    • Primary xylem
      Xylem that is formed first
    • Primary phloem
      Phloem that is formed first
    • In real life, there would be many more tubes than are shown here
    • The cambium separates xylem and phloem
    • Cross section of young stem refers to the young part of a stem (dicotyledon)
    • Epidermis is covered by cuticle
    • Cortex is present in the cross section of a young stem
    • Endodermis is mentioned in the context of root structure
    • Longitudinal section of a root is referenced
    • Vascular bundles are present in the cross section of a young stem
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