Transport In Plants

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  • Created by: Amelia
  • Created on: 06-05-13 18:53

The reasons why plants need water:

  • To produce chemical reaction inside cells.
  • To allow the cell to become turgid.
  • 70% of cytoplasm in cells is water.
  • It is used for photosynthesis.
  • For the cells to function.
  • Transport of nutrients
  • So that the plant remain upright.
  • So that the plant can remain cool.

How do plants get the water they need?

They get their water from the soil through the roots. 

  • Water is always being lost from leaves by evaporation - this creates a pulling force (negative pressure) that literally sucks water up through the plant.  This is called transpiration.
  • Loss of water from leaves is inevitable (will always happen), because the stomata must be open to allow carbon dioxide into the leaf for photosynthesis.  As there is a higher concentration of water molecules inside the leaf than in the air outside, water molecules will always diffuse out of the


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