Organisms biochemical interdependence

Many biochemical reactions of great importance take place in only a limited number of organisms. This fact increases the complexity of the study of biochemistry. We must learn many reactions we must also be aware of the biochemical potentials of different organisms. This is the only way we can understand the biochemical interdependency of organisms. 

Every organic compound possesses a unique chemical individuality. Its properties, as a function of structure, depend upon several subtly interdependent structural parameters. Because of this peculiarity, structure-activity correlations more often than not are amenable only to qualitative rather than quantitative formulations. Even so, it is unavoidable to search for a target material with a given set of properties on a somewhat empirical basis. These investigations include physico- and biochemical correlations within a series of related compounds. This crucial series of compounds are supplied by organic synthesis. 

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