Adaptations

Functions

Structure

Means: Loss of water vapour fromaerial parts of the plant, especiallythrough the stomata of the leaves

Dependent upon evaporation.

Factors affecting Transpiration

Transpiration Pull: As a result of transpiration,water moves up the whole column from theroots to the leaf. This is also how water gettransported up the plant. The plant has toloose water to gain water.

Importance of transpiration : WILTING

Structure

Adaptations

Functions

Water enters the plant throughthe roots through osmosis

Cell sap in root hair has lower waterpotential than the surrounding soilsolution. Therefore, water has to enterthrough osmosis (water flow from higherwater potential to lower water potential)

Water passes by osmosis from theroot hair cell to the inner cells.

This process continues until thewater reaches the xylem vesselsto be transported throughout theplant

Transported as sucrose and amino acids

Translocation is an active process that requiresenergy (Not fully understood)