Which field in Biology studies chemical processes within and relating to living organisms ?
* Mechanochemistry – coupling of the mechanical and the chemical phenomena on a molecular scale and includes mechanical breakage , chemical behaviour of mechanically - stressed solids ( e.g. , stress - corrosion cracking ) , tribology , polymer degradation under shear , cavitation - related phenomena ( e.g. , sonochemistry and sonoluminescence ) , shock wave chemistry and physics , and even the burgeoning field of molecular machines .