Medical Dictionary. arrhythmia. play. noun arÂ·rhythÂ·mia \Ä-Ërith-mÄ-É\. Medical Definition of arrhythmia. : an alteration in rhythm of the heartbeat either in time or force.
Central metabolism provides mechanisms for the generation of energy from carbon-energy source catabolism and the production of biosynthetic precursors and intermediates for the anabolic pathways essential to maintain cell structure and function.
Enzymes interact to generate metabolic networks. The activities of more than 22 enzymes from central metabolism were profiled during the development of fruit of the modern tomato cultivar Solanum lycopersicum âM82â and its wild relative Solanum pennellii (LA0716).ore recently, these studies of enzyme activities have been complemented by proteomic analyses during fruit ripening (Rose et al., 2004; Faurobert et al., 2007). We have now investigated the activities of 28 enzymes during tomato fruit development, located in most of the major pathways in central metabolism.