Question

Water will be absorbed by root hairs, when

• A. Concentration of salt in the soil is high
• B. Concentration of solutes in the cell sap is high
• C. Plant is rapidly respiring
• D. They are separated from soil by a permeable membrane

Answer 1

The correct option is B Concentration of solutes in the cell sap is high

Higher solute concentration in cell sap means that it is hypertonic, as compared to the outside medium. In this case the outside medium will be having relatively more water and water moves from a region of higher to lower concentration during osmosis.