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The movement of water molecules from a region of high water concentration to a region of low water concentration across a partially permeable membrane.
Partially permeable membrane
A membrane with very small holes in it. So small only tiny molecules can pass through it.
Osmosis is a type of this.
Root hair cells
These take up water via osmosis and minerals using active transport.
Low to high concentration (against concentration gradient)
These transport water an minerals from the root to the rest of the plant.
These transport sugars from the leaves to growing and storage tissues.
The loss of water from the plant.
Evaporation and Diffusion
Transpiration is caused by this.