How plants drink water: part 8️⃣

How do these forces work together?  🤔

Transpiration only occurs during the day when the leaves’ pores are open. Transpiration, along with cohesion and root pressure, have the effect of pulling water up from the root cells, through the xylem, and up to the pores of the leaves where they evaporate. 

At night, the pores close, and all the water that hasn't evaporated remains in the xylem tissue. The water molecules don’t just fall back down to the ground; they are held in place by the forces of cohesion and adhesion. Because the water molecules are held in place, the plant can make use of the water during the night as it respires. ☺️

Final thoughts.


This blog post is part of a series on how plants drink water. You can navigate to any post in the series by using the menu here:

  1. Pass me the water, please. 💦
  2. The root of the matter. 🧐
  3. Oh xylem, my xylem. 😍
  4. Transpiration: take a breath. 🤭
  5. Water sticks together. 😛
  6. Cohesion: water that sticks together, evaporates together. 🤯
  7. Adhesion: liquids stick to the surface of their container. 🤮
  8. How do these forces work together? 🤔
  9. Final Thoughts 🙌

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