NEET BIOLOGY

Detailed explanation-1: -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-2: -They cannot be absorbed by diffusion, because the minerals are in very low concentration. Instead, active transport is used. The root hair cells have carrier proteins in their cell membranes. These pick up the mineral ions and move them across the membrane into the cell against the concentration gradient .

Detailed explanation-3: -The root hairs are where most water absorption happens. They are long and thin so they can penetrate between soil particles and they have a large surface area for absorption of water.

Detailed explanation-4: -Osmosis takes place in all cells. In plant cells, soil water is absorbed by the root hair cells through the process of osmosis: The absorbed water is then transported from the roots to the rest of the plant via xylem vessels. Water is used for a number of different purposes in a plant.

Detailed explanation-5: -Root hair cells are specialised to allow plants to absorb more water and let a plant absorb the minerals it needs to keep alive. Xylem and Phloem cells are used by the plant to transport minerals, sugar and water to other parts of the plant.