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.
Anabolic glucose metabolism pathways Gluconeogenesis is the pathway that generates glucose from non-carbohydrate carbon substrates such as pyruvate, lactate, all tricarboxylic acid cycle intermediates (through conversion to oxaloacetate), amino acids other than lysine or leucine, and glycerol.