Question

Water supply in the plant is due to

• A. Osmosis
• B. Guttation
• C. Cohesion force
• D. Imbibition

Answer 1

The correct option is C Cohesion force

Water supply in the plant is due to cohesive force. Cohesive force of water is due to the hydrogen bond between the water molecules. It allows the liquid molecules to resist separation. Cohesion holds hydrogen bonds together to create surface tension on water. The suction is created by the transpirational pull in response to which the water rises due to the cohesive force between water molecules and adhesive force between water and xylem vessels.

So, the correct answer is option C.