Why do organisms need water
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Organisms need water due to following reasons.
1. Component of living Matter.
Water is a major component (60-90%) of living Matter.
2. Solvent.
Water is a general solvent for chemicals found in the living world.
3. Reaction Medium.
All biochemical reactions occur in the medium of water.
4. Transport.
Substances are transported in the body of a living organisms only in the dissolved state.
5. Turgidity.
Cells, cell organelles, tissues and other structures maintain their shape only when they contain sufficient water to make them turgid.
6. Temperature Buffer.
Water protects the body from sudden changes of temperature.
7. Wastes.
It helps in separation and elimination of metabolism wastes.
1. Component of living Matter.
Water is a major component (60-90%) of living Matter.
2. Solvent.
Water is a general solvent for chemicals found in the living world.
3. Reaction Medium.
All biochemical reactions occur in the medium of water.
4. Transport.
Substances are transported in the body of a living organisms only in the dissolved state.
5. Turgidity.
Cells, cell organelles, tissues and other structures maintain their shape only when they contain sufficient water to make them turgid.
6. Temperature Buffer.
Water protects the body from sudden changes of temperature.
7. Wastes.
It helps in separation and elimination of metabolism wastes.
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WHY DO ORGANISMS NEED WATER?
Organisms need water because it is a major component (60-90%) of living matter.It plays a vital role in metabolic reactions take place within their bodies.Water acts as Universal solvent and provides a medium for chemical reactions to occur in body.Various substances in dissolved form are also transported from one part of the body to other.Water protects our body from sudden changes of temperature.It helps in separation and elimination of metabolic wastes.Therefore to survive,it is necessary for the organisms to maintain the level of water with their bodies.
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