Defination of life

Life is easier to recognise than to define. Life appears to be extremely complex organisations of non-living materials, operating in accordance with some physio-chemical principles.This complexity is reflected in the organisations of living system greater than that of non-living ones.We know that all materials-living or non-living are formed of certain basic units called atoms.Atoms are combined in specific ways to form various kinds of molecules. Livings systems are mixture of very large and complex molecules functioning together in a co-ordinated manner. The chemistry of the principles constituents of protoplasm is in large part responsible for the attributes of life. Living organisms have the capacity to extract and transform energy from their component materials.Self-replication is a property that can be regared as unique of the living state.

• defination of life : Life is a unique, complex organisations of molecules that expresses itself through chemical reaction which lead to growth,development, responsiveness, adaption and reproduction.