Biophysical growth and reproduction mechanisms of cells and first principles of life origin and development

There are evidences that organic life cannot be reduced to a single biomolecular realm, but, similar to other natural phenomena, rather involves different mechanisms acting at different scale levels, which together define evolvement of the living world. Here we show that a certain biophysical mechanism of general nature, acting at a cellular scale level and above, is also an influential factor in life phenomena. In inherent unity with biomolecular mechanisms, it governs growth and reproduction of cells, organs and whole organisms, and secures irreversibility of the life cycle progression. For validation of proposed concepts, we study the growth and division of B. subtilis, Staphylococcus, E. coli, S. pombe and Amoeba using extensive experimental observations. A well founded hypothesis is presented why and how cells grow and divide. The study also sheds light on other pertinent problems of biology, biophysics, and first principles of life origin and development.