SSC MTS EXAM

Detailed explanation-1: -Root hair has thin walls. They are two layered structures. The outer layer is the cell wall and inner layer forms the cell membrane. The outer cell wall is extremely thin like that of cell wall but is semipermeable.

Detailed explanation-2: -Each root hair has a semi-permeable membrane. It contains a solution (cell sap) of a higher concentration than surrounding soil water.

Detailed explanation-3: -partially permeable membrane A membrane that is permeable to the small molecules of water and certain solutes but does not allow the passage of large solute molecules. This term is preferred to semipermeable membrane when describing membranes in living organisms. See osmosis.