AP BIOLOGY

Detailed explanation-1: -The soil is at a lower concentration than the root hair cells. Hence, water moves from the soil to the root hair cells by the process of osmosis. Osmosis is the movement of water molecules from a region of low concentration to high concentration through a semipermeable membrane.

Detailed explanation-2: -Root hair cells Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.

Detailed explanation-3: -In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell’s partially permeable membrane.

Detailed explanation-4: -The process by which water enters the root hair cell is called as osmosis. Due to the semipermeability and low potential of water, water enters into root hair through osmosis.

Detailed explanation-5: -Water entered through the root of the plant is transported to leaves and is lost in the air. The hair of the root is hypertonic to the surrounding soil or water. This causes the entry of water from the soil to the root hair through the process of osmosis.