... in their walls which strengthen the cells. This is why wood is a strong material. Osmosis in plants The root hairs together increase the surface area of the root. This enables water and mineral ions to be absorbed more quickly. The soil solution is water containing low concentrations of mineral ions. This is a dilute solution. The cytoplasm and the vacuole... Stacey Owen Candidate no: 0126 Hampton Community College of the root hair cell contain a higher concentration of mineral ions, than the soil solution. Water molecules move from the soil solution to the cytoplasm and vacuole of the cell by osmosis. Leaves normally contain a lot of water, so water will evaporate from them in exactly the same way that a wet shirt dries on a washing line. Evaporation of water from a leaf surface is called transpiration. If plants lose too much water by transpiration, the leaves droop. This drooping is called ...

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