write the mechanism of transpiration pull that contributes to Ascent the SAP in tall trees
Answers
Good Question and Your answer is Here.
The Mechanism of the ''Transpirational Pull'' that contributes to the Ascent of Sap is---
→The Roots of the Plants continue to take water from the Roots and the Pressure commonly called as ''Root Pressure'' is created which forces the water and the Minerals Sap to the xylem vessels.
→Water forms continuous columns in the xylem vessels from there lower end in the root to there upper end in the ''Mesophyll Cells'' [Cells present in the leaves of the Plants are called as Mesophyll Cells] of the leaves.
→When water is lost from the leaves by the Process of Transpiration or consumed by the Process of Photosynthesis, then the water column is becomes greatly stretched.
However the Continuity of the Water column does not Break due to the force of the Cohesion and the Force of Adhesion between the ''Water molecules'' and the ''Minerals Sap'' and the Substance of the Walls of the Xylem Vessels.
→←The Magnitude of the ''Transpirational Pull'' is Sufficient to raise water up to the tall of the Tallest Trees.→←
Due to the Transpirational pull, Transpirational stream is formed which is the path of the ''Mineral Sap'' through the vessels and the Tracheids of xylem tissues due to Transpiration.
I Anticipate it will help u.
Have a Marvelous Day.
Transpiration pull: The suction force which aids in drawing the water upward from roots to leaves is called as transpiration pull.
Mechanism: In leaves, water is needed for photosynthesis and excess water is released into atmosphere by transpiration through openings called as stomata.
The water deficit developed in leaf cells due to transpiration is responsible for pulling the water upward. This process is referred to as ascent of sap.
The evaporation of water from the leaf creates a suction force which is responsible for pulling water from the xylem cells of roots.
Thus, transpiration helps in the absorption and upward movement of water and minerals dissolved in it from roots to the leaves.
Read more on Brainly.in - https://brainly.in/question/3420761