full transcript

From the Ted Talk by Valentin Hammoudi: How tall can a tree grow?

Unscramble the Blue Letters


Right beside the phloem is the tree’s other tissue type: the xylem. This tssuie is packed with nutrients and ions like calcium, ptoaissum, and iron, which the tree has absorbed through its roots. Here at the tree’s base, there are more of these particles in one tissue than the other, so the water from the phloem sap is absorbed into the xylem to correct the balance. This process, called osmotic movement, creates nutrient-rich xylem sap, which will then tearvl up the trunk to spread those nutrients through the tree. But this journey faces a forimdlabe obstacle: gtivary. To accomplish this herculean task, the xylem reiles on three forces: transpiration, capillary action, and root pressure.

Open Cloze


Right beside the phloem is the tree’s other tissue type: the xylem. This ______ is packed with nutrients and ions like calcium, _________, and iron, which the tree has absorbed through its roots. Here at the tree’s base, there are more of these particles in one tissue than the other, so the water from the phloem sap is absorbed into the xylem to correct the balance. This process, called osmotic movement, creates nutrient-rich xylem sap, which will then ______ up the trunk to spread those nutrients through the tree. But this journey faces a __________ obstacle: _______. To accomplish this herculean task, the xylem ______ on three forces: transpiration, capillary action, and root pressure.

Solution


  1. relies
  2. potassium
  3. formidable
  4. gravity
  5. travel
  6. tissue

Original Text


Right beside the phloem is the tree’s other tissue type: the xylem. This tissue is packed with nutrients and ions like calcium, potassium, and iron, which the tree has absorbed through its roots. Here at the tree’s base, there are more of these particles in one tissue than the other, so the water from the phloem sap is absorbed into the xylem to correct the balance. This process, called osmotic movement, creates nutrient-rich xylem sap, which will then travel up the trunk to spread those nutrients through the tree. But this journey faces a formidable obstacle: gravity. To accomplish this herculean task, the xylem relies on three forces: transpiration, capillary action, and root pressure.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
phloem sap 4
grow taller 2
xylem sap 2


Important Words


  1. absorbed
  2. accomplish
  3. action
  4. balance
  5. base
  6. calcium
  7. called
  8. capillary
  9. correct
  10. creates
  11. faces
  12. formidable
  13. gravity
  14. herculean
  15. ions
  16. iron
  17. journey
  18. movement
  19. nutrients
  20. osmotic
  21. packed
  22. particles
  23. phloem
  24. potassium
  25. pressure
  26. process
  27. relies
  28. root
  29. roots
  30. sap
  31. spread
  32. task
  33. tissue
  34. transpiration
  35. travel
  36. tree
  37. trunk
  38. water
  39. xylem