These units capable of multiplication by budding, growth from with in and metabolic activities have been named “JEEWANU” Which in Sanskrit means particles of life. (Bahadur & Ranganayaki, 1970).

Jeewanu have been found to contain a number of biochemicals in them (viz. Amino acids which are present in free as well as in peptide combination, nucleic acid bases as purines as well as pyrimidines, sugars as ribose as well as deoxyribose and phospholipid-like materials)

Their microscopic examination reveals that they are spherical in shape , have a double walled definite boundary wall and a intricate internal structure. The EPR spectra of Jeewanu showed the presence of ferredoxin-like material in them. Cytochemical and histochemical studies showed that they can be stained with acidic and basic dyes. Jeewanu mixture have been also analysed for the presence of a number of enzyme-like activities in them (viz. Phosphatase, ATP-ase esterase, Nitrogenase-like). These microstructures can catalyse photolytic decomposition of water utilising sunlight as a source of energy. H2 thus released is utilized in photochemical reduction of CO2 and N2. These findings were confirmed using radioactive tracer C14, N15 and D2O.