Question
Water is significant molecule that connects physical world with biological processes.

Answer

  1. Water is an important constituent of cell. About 90 – 95% of protoplasm is water.
  2. Water in liquid state is best solvent in which various minerals and food molecules are dissolved and transported.
  3. Water acts as the thermal buffer has high specific heat.
  4. Water molecules have high adhesive and cohesive forces of attraction.
  5. It can rise in capillaries due to high surface tension and adhesive forces, e.g. Ascent of sap in plants.
  6. Due to all these important factors it is a significant molecule connecting physical world with biological processes.

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