Study

Transport in plants (without translocation)

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  • What is X?
    pericycle
  • In which water movement pathway water may move through intercellular spaces?
    apoplast
  • ?
    xylem, phloem, palisade, spongy
  • What could have occured at point X and Y on the graph?
    X: change to increase the rate of transpiration, Y change to decrease the rate of transpiration
  • name three factors/forces contributing to the movement of water in xylem vessels up from root to leaves
    transpiration pull, adhesion, cohesion
  • What are 1, 2 and 3?
    cortex, endodermis, phloem
  • ?
    B
  • Which plant cell wall has uneven thickness of cell wall, with thicker wall at the corners?
    Collenchyma
  • By which process water and dissolved minerals move up in the xylem vessels?
    mass flow
  • List 3 adaptations of xylem vessel element for transportation of water
    thick lignified walls, no end walls, no cell content/dead, pits
  • Which cells are found in the area labelled X?
    Sclerenchyma
  • ?
    B
  • ?
    1 and 4 only
  • By which process does water moves out of the leaf through stomata in transpiration?
    diffusion
  • By which process does water enter root hair cells?
    Osmosis
  • In which water movement pathway water never enters cell cytoplasm?
    apoplast
  • What are Y and Z?
    Y-xylem, Z-phloem
  • list 3 adaptations of xerophyte leaves
    sunken stomata, thick cuticle, hairs/trichomes on the leaf, fewer stomata
  • Which is correct for parenchyma cells?
    A
  • ?
    2-4-3-1
  • Function of xylem other than transportation of water and minerals
    (mechanical) support
  • What is the name of the cell labelled X?
    guard cell
  • Which tool is used to measure the rate of water uptake by a plant?
    potometer
  • Name two dead but functional plant cells.
    xylem and sclerenchyma