Question

Water absorbed by root to meet the requirement of transpiration is possible due to

• A. Diffusion
• B. Osmosis
• C. Imbibition
• D. Plasmolysis

Answer 1

The correct option is B Osmosis

(A)Diffusion is the movement of water from the higher concentration to lower concentration.

(B)Osmosis is the movement of water from low solute concentration to high concentration through a semi-permeable membrane.

Water concentration in soil is low than water potential of root so water is absorbed by root from the soil.

(C)Imbibition is the diffusion when water is absorbed by solid colloid.

(D)Plasmolysis is the contraction of protoplast due to the loss of water.

So, the answer is 'Osmosis'.