Question

Put a tick mark (✓) against the correct alternative in the following statements:
Force responsible for the ascent of sap is:

• A. All the three
• B. Root Pressure
• C. Capillary force
• D. Transpirational pull

Answer 1

The correct option is A All the three

The correct answer is (d)- All the three.

• Capillary force is the force due to the narrow diameter of xylem tracheary elements that helps in raising water in the xylem column.
• Root pressure builds up sufficient force to push the sap in xylem vessels upto a certain height.
• Transpiration due to evaporation of water from stomata generates a pulling force to transport water through the xylem column to greater heights.