OBJECTIVE FORESTRY

Detailed explanation-1: -Water and mineral salts first enter through the cell wall and cell membrane of the root hair cell by osmosis. The root hairs small diameter and greater length makes sure that they have a large surface area over which to absorb water and mineral salts.

Detailed explanation-2: -Most plants obtain the water and minerals they need through their roots. The path taken is: soil-> roots-> stems-> leaves. The minerals (e.g., K+, Ca2+) travel dissolved in the water (often accompanied by various organic molecules supplied by root cells).

Detailed explanation-3: -In plants, water and minerals are transported through xylem cells from soil to the leaves. The xylem cells of roots, stems and leaves are interconnected to form a conducting channel that reaches all parts of the plant body. The root cells take ions from the soil.

Detailed explanation-4: -Root hairs are single-celled extensions of epidermal cells in the root. They grow between soil particles and absorb water and minerals from the soil. Water enters the root hair cells by osmosis. This happens because soil water has a higher water potential than the cytoplasm of the root hair cell.