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Solvent

Water acts as the solvent for the minerals present in the soil and with the absorption of water from the soil minerals also enters the plant body. While these minerals could not be easily and naturally taken up by the plants if they were in solid state.

Transport

Water is used to transport the metabolic products from one part to the other where they are needed. So it acts as a vehicle for the transportation.

Photosynthesis

Photosynthesis is a process in plants to make their food. And water is an electron source of this process.

6CO2 + 6H2O â€" C6H1206 + 6O2

In this process six water molecules combine with six carbon molecules to form, oxygen and glucose (food for plants)

Evaporation

Water is evaporated through the stomata present on the leaves. It cools the plant in the hot sunny days, in the similar manner as we get cool by perspiration. Roots also store the water to be used in winter. In cold days water movement from the soil is very slow but the leaves loses water by wind in the winter too. So the stored water helps the plant to compensate with it. If no water is available to the plant then the tissues will start dying in the leaves and they will turn brown in color. Evaporation is also necessary for plant to let the stomata remain open for the intake of carbon dioxide.

Turgidity

Water is necessary for the turgidity i.e. the pressure of water in the cells of plants which is important for the survival of plant else it will wilt. It is also required for the growth as it expands the plant cells

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13y ago
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15y ago

Water is the only choice for plants. Nutrients desolve in it and get drawn up (via hydrogen bonding) to the tops and leves of the plants. It's okay to feed a plant something like soda water for a brief period, but since the roots of the plants require oxygen for the plant to live (it's the leaves that need carbon-dioxide) you could do damage by pushing out the oxygen in the soil. Soda water is a slight acid and that's actually good for plants although it's much better to add an acid to the water to reach the right pH for the plant (varies by plant).

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11y ago

the reason you use water to water plants is so that they can grow and be strong and healthy

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Water is needed by plants for a number of reasons...


- To photosynthesise (make their own food using sunlight, carbon dioxide & water)

- To use a means for transporting mineral ions around the plant

- For turgidity (to make sure that the plant doesn't wilt - water makes plant cells firm)

- Water evaporates from plant leaves which could help to cool the plant


98% of water taken up by a plant is transpired to the atmosphere!

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10y ago

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Q: Why is water the best choice for plants?
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