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: -Diffusion: The soil water enters from the higher concentration to the lower concentration by the process of diffusion.

Detailed explanation-3: -Water moves into the roots from the soil by osmosis, due to the low solute potential in the roots (lower s in roots than in soil). This intake o f water in the roots increases p in the root xylem, driving water up.

Detailed explanation-4: -Xylem transports water in plants. Water is absorbed from the soil through root hair cells. Water moves by osmosis from root cell to root cell until it reaches the xylem. It is transported through the xylem vessels up the stem to the leaves.

Detailed explanation-5: -Water potential of root cells is higher than water potential of soil.