Osmosis
Osmosis is the process of the movement of water molecules from an area of higher water concentration to an area of lower water concentration, across a semi-permeable membrane. The semi-permeable membrane allows the passage of water molecules but not solute molecules. Thus, osmosis helps plants in the absorption of water from the soil. The water moves from a region of higher concentration (soil) to a region of lower concentration (root cells) through osmosis.
Plant Water Relations
The transfer of water, nutrients, and other materials from one section of the plant to another is referred to as transport in plants. Plants rely on their transport system for growth, survival, and reproduction. Water transport in plants is critical for sustaining the turgor pressure required for cell structure and function.