The so-called complexity of organismic substance is, it is true, real, but just as well being a kind of "coincidential" or a causally formed complexity. We already said that organismic chemistry is subsequent to "inorganic" chemistry [in the sense of inorganic and organic chemistry both dealing with non-living substance.], but in no way linearly so that there where defined classical chemistry ends (its upper boundary) Life (in the form of its lowest boundary) begins.
The transition lies, as to actual [historical] origins, very deep indeed. But it can, as shown by assimilation-metabolic processes, take place, since the origin of Life, at the high level of classically organic chemistry, in which now [in the general reaction equation] merely a single [type of] reactant belongs to the purely classically chemical, while the second reactant [the second partner of the reaction] is life-already [i.e. the living mega-molecule], or is chemically bonded to it. The other side of the reaction equation contains increased [as to bulk] life and non-living waste products which also are nothing else than classical-chemical material :