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.
One of the waste products of protein metabolism is ammonia. Too much ammonia can be toxic and harmful to the body. Enzymes in the urea cycle convert this toxic ammonia into a nontoxic substance called urea, which can be eliminated from the body.1, 2.ne of the waste products of protein metabolism is ammonia. Too much ammonia can be toxic and harmful to the body. Enzymes in the urea cycle convert this toxic ammonia into a nontoxic substance called urea, which can be eliminated from the body. 1, 2.