Plant Tissue

    Subdecks (1)

    Cards (26)

    • Photosynthesis takes place in leaves
    • Leaf
      A plant organ
    • Leaf
      • Contains different tissues
    • Epidermal cells
      Form epidermal tissue
    • Upper epidermis
      Covers the top of the leaf
    • Lower epidermis

      Covers the bottom of the leaf
    • Epidermis
      • Protects the surface of the leaf
    • Upper epidermis
      • Transparent, allows light to pass through
    • Waxy cuticle
      Thin layer of oily material covering the upper epidermis, reduces water evaporation
    • Stomata
      Tiny pores in the lower epidermis, allow carbon dioxide in and oxygen out, help control water vapour loss
    • Guard cells
      Found on either side of the stomata
    • Palisade mesophyll

      Packed with chloroplasts, site of photosynthesis
    • Spongy mesophyll
      Full of air spaces, allows gas exchange
    • Xylem
      Transports water and dissolved mineral ions from roots to leaves
    • Phloem
      Transports dissolved sugars produced by photosynthesis from leaves to rest of plant
    • Translocation
      Movement of sugars through phloem tissue
    • Meristem tissue

      Contains stem cells that can differentiate into different plant tissues, found in growing tips
    • This diagram shows a cross section of a leaf
      A) cuticle
      B) upper epidermis
      C) chloroplasts
      D) vacuole
      E) xylem
      F) vein
      G) phloem
      H) lower epidermis
      I) cuticle
      J) air channel
      K) stoma
      L) guard cells
      M) spongy mesophyll
      N) vertical palisade cell