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6. Which method does water used to move betwen plant cells?

  • Active transport
  • Diffusuion
  • Osmosis
  • Facilitated Diffusion

7. Where is the xylem usually found in the stem?

  • In between two major vessels
  • Nearest the pith
  • Nearest the parenchyma

8. What is not an adaptation of a xerophyte?

  • Thick waxy cuticle
  • No stomata
  • Hinge cells
  • Hairs on surface of leaf to trap moist air
  • Smaller leaves
  • Densley packed spongey mesophyll
  • Stomata in Pits
  • Closing stomata

9. What is not an adaptation of a sieve tube element?

  • No nucleus, tonoplast or ribosomes
  • End walls break down to form a continnuous pipe
  • Sieve plates at intervals
  • Contain very little cytoplasm
  • Near a companion cell

10. What is not an adaptation of a xylem cell?

  • End walls break down to form a continnuous pipe
  • Sieve plates between the elements
  • Pits allow lateral movement
  • Long thick walls with lignin in it to waterproof

11. Why do plants have transport systems?

  • To send leafmail to each other
  • Impatient and Rash
  • Large and multicellular
  • Large SA:V

12. What is transpiration?

  • Loss of water vapur from ariel ports of a plantdue to evaporation
  • Movement of a stream of water from the highest point of a mountain to the sea

13. What do sieve plates not have?

  • Is between sieveplates
  • Many plasmodesmata between compaion cells to allow comunication
  • Pores to allow entry to ions
  • Dense cytoplasm

14. What is not used to make the transpiration stream work ?

  • Active transport
  • Cohesion using hydrogen bonds between the water molecules
  • Activley transporting ions into the stem to lower PSI
  • Pressure from the water molecules make sit move up
  • Adhesion using hydrogen bonds between walls of xylem and water
  • Movement through apoplast or symplast pathway

15. The apoplast pathway goes through..?

  • The cell walls
  • Plasmodesmata in the cytoplasm