  First, we briefly describe the general growth mechanism, which governs the
growth of living organisms, and its mathematical representation, the growth
equation. Using the growth equation, we compute growth curve for S. cerevisiae
and show that it corresponds to available experimental data. Then, we propose a
new method for finding amount of synthesized biomass without complicated
stoichiometric computations and apply this method to evaluation of biomass
production by S. cerevisiae. We found that obtained results are very close to
values obtained by methods of metabolic flux analysis. Since methods of
metabolic flux analysis require finding produced biomass, which is one of the
most important parameters affecting stoichiometric models, a priori knowledge
of produced biomass can significantly improve methods of metabolic flux
analysis in many aspects, which we also discuss. Besides, based on the general
growth mechanism, we considered evolutionary development of S. cerevisiae and
found that it is a more ancient organism than S. pombe and is apparently its
direct predecessor.
