1
Question
How does transpirational pull help in the absorption of water by plants?
How does transpirational pull help in the absorption of water by plants?
Open in App
Solution
Transpirational pull:
Transpiration pull is responsible for moving water at the leaf end, the pull or force is transmitted down to the root through a column of water in the xylem elements.
- This is a force that is developed due to transpiration.
- Due to transpiration, water is lost from the mesophyll cells of leaves to the intercellular space that leads to negative water potential.
- This negative pressure exerts an upward pull over the water column which results in the absorption of water via the root cells that can be found in roots where mainly passive absorption (diffusion) occurs.
- The pull is because of the tendency of water molecules to remain joined (cohesion) during transpiration and the force exerted is called cohesion force.
Transpirational pull:
Transpiration pull is responsible for moving water at the leaf end, the pull or force is transmitted down to the root through a column of water in the xylem elements.
- This is a force that is developed due to transpiration.
- Due to transpiration, water is lost from the mesophyll cells of leaves to the intercellular space that leads to negative water potential.
- This negative pressure exerts an upward pull over the water column which results in the absorption of water via the root cells that can be found in roots where mainly passive absorption (diffusion) occurs.
- The pull is because of the tendency of water molecules to remain joined (cohesion) during transpiration and the force exerted is called cohesion force.
Suggest Corrections
0
Similar questions