Transport In Plants Question 1
Question: Adhesion is caused by:
Options:
A) Formation of hydrogen bond between water molecules.
B) Transpiration pull.
C) Higher surface tension.
D) Attraction of water molecule to polar surface.
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Movement of water inside the roots from soil to xylem and then in most of the plant parts takes place by transpiration forces, which provides both energy and necessary pull.
Cohesion force is responsible to join the water molecule with one another in water column.
While, force between tracheary wall and water molecule produces surface tension which account high capillarity through tracheary elements, which is called as adhesion force.
These forces help to ensure the continuity of water column in xylem.
BETA
