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Water is indispensable for life. What pr...

Water is indispensable for life. What properties of water make it useful for all biological processes on the earth ?

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Properties : (1) Water is a main solvent. Soluble salts dissolved in it and enters to plant through soil solution.
(2) It is an ideal solvent and its pH is neutral.
(3) It is the main component of protoplasm.
(4) Water is a medium for transport of nutrients salts are absorbed by water carbohydrate which is formed during photosynthesis, is transported through water from one cell to another cell, from tissue to tissue and organ to organ.
(5) Water is necessary for photosynthesis. Hydrogen ion in formation of carbohydrate and molecule of oxygen in the flow of `O_2` are released from it.
(6) Water plays role in regulation of temperature. The definite temperature of water is responsible to maintain internal temperature of plants.
(7) In some plants water is useful for pollination. e.g. bryophytes and Pteridophytes. Water is needed for fertilization in them.
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