Transport In Plants

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…