Studies on biological processes in nature are of great interest to researchers as it involves modelling and understanding processes using different perspectives. The proposed model emphasises on Formal Languages and Automata Theory. A generative device and a recognition device are designed to monitor biological processes. It is shown that the proposed models are capable of recognising the biological processes by using glycolysis in pancreatic β cells and glycogen metabolism in astrocytes. The acceptance or rejection state of recognising device monitors the completion of the defined processes. Generative device produces strings that represent set of enzymes significant for initiating the biological process. Such generative and recognising devices assist in designing of biocomputing machines at molecular level. © 2016, King Fahd University of Petroleum & Minerals.