Question

What are the forces responsible for the upward movement of water in the tracheary elements?

Answer 1

Forces responsible for the upward movement of water:

1. Adhesion, cohesion, and surface tension are the forces that enable water to rise in the tracheary elements.
2. Water molecules are held together by the cohesion force, which is a strong mutual attractive attraction.
3. Due to cohesion force, water columns may withstand a draw or strain of up to 100 atm. As a result, the tensile strength is also known as the cohesion force.
4. The theoretical approximation is around 15,000 atm.