explain the importance of absorption of water and mineral salts in plants
Answers
Answer:
The minerals are usually salts containing magnesium, calcium and iron, and end up in the water after it flows through soil into natural reservoirs in the bedrock. ... As the water passes through the system calcium and magnesium, which are important for plant growth, are removed and sodium is added.
Answer:
Water and mineral salts first enter through the cell wall and cell membrane of the root hair cell by osmosis. Root hair cells are outgrowths at the tips of plants' roots . They function solely to take up water and mineral salts. Root hair cells do not perform photosynthesis, and do not contain chloroplasts as they are underground and not exposed to sunlight. These cells have large vacuoles which allow storage of water and mineral salts. Their small diameter (5-17 micrometres) and greater length (1500 micrometres) ensure they have a large surface area over which to absorb water and mineral salts. Water fills the vacuole of the root hair cell.
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