PREC

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Across
  1. 2. Pressure – I push water upward from the roots. I'm like the plant’s underground pump!
  2. 5. Bundle – I’m a team of xylem and phloem packed together, like veins in a leaf or stem.
  3. 6. Cell – I open and close to control what enters or exits the stomata. I work in pairs like gatekeepers!
  4. 7. – I’m like diffusion but only for water! I move water through membranes, from where it’s more to where it’s less.
  5. 9. – I’m the movement of sugars through the phloem. From source to sink, that’s my route!
  6. 11. – I move molecules from high to low concentration—no energy needed!
  7. 12. – I transport sugars and nutrients down or around the plant. I’m alive and sweet!
Down
  1. 1. – I’m the process where water evaporates from leaves. I help pull water upward like a straw.
  2. 3. – I carry water up from roots to leaves. I'm made of dead cells and give plants strength.
  3. 4. Action – I help water move up thin tubes without a pump. I work because of cohesion and adhesion.
  4. 8. – I’m a tiny opening on leaves. I let gas in and out—CO₂ in, oxygen and water vapor out!
  5. 10. Tube – I’m part of the phloem highway. I let food flow through me with help from companion cells.