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Chemistry, Properties of Water - Water - Biomolecules | 11th Botany : Chapter 8 : Biomolecules

Chapter: 11th Botany : Chapter 8 : Biomolecules

Water - Biomolecules

Water is the most abundant component in living organisms.

Water

 

Water is the most abundant component in living organisms. Life on earth is inevitably linked to water. Water makes up 70% of human cell and upto 95% of mass of a plant cell (Figure 8.2).




 

1. Chemistry of Water

Water is a tiny polar molecule and can readily pass through membranes. Two electronegative atoms of oxygen share a hydrogen bonds of two water molecule. Thus, they can stick together by cohesion and results in lattice formation (Figure 8.4).


 

2. Properties of Water

 

            Adhesion and cohesion property

 

            High latent heat of vaporisation

 

            High melting and boiling point

 

            Universal solvent

 

            Specific heat capacity

 


 

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