单词 | phosphagen |
释义 | phosphagenphos·pha·gen(fos'fă-jen),phosphagen(fŏs′fă-jĕn)phosphagena type of chemical found in the muscles of all animals, whose function is to pass on high-energy phosphate to ADP to form ATP. Phosphagens thus act as energy-storage molecules and are especially useful when cellular respiration is not providing sufficient ATP molecules, for example when sudden muscular activity takes place. Phosphagens are of two types: creatine phosphate found in vertebrates and echinoderms, and arginine phosphate found in many other invertebrates. |
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