6 – Intermediary Metabolism

摘要: Publisher Summary This chapter examines the metabolism of carbohydrates and proteins. Despite limited importance carbohydrate in natural diets most fish, is central pathway by which energy transactions occur as animals. Carbohydrate breakdown initiated glycolysis, can proceed absence oxygen, albeit with a reduced ATP yield compared to that provided mitochondrial oxidation CO2 H2O. Body protein continuous process synthesis degradation (catabolism). The turnover amino acids, sequentially cycling through via degradation, extremely specific at different tissue levels, but overall, fish catabolize 40–50% body proteins be returned pool precursors reused for synthesis. Simultaneous availability all essential assuming an excess nonessential site required efficient initiating enzymes (acyl synthetases) have high affinity acid substrates comparison acids.