On earth, 90 percent of the methane in the atmosphere comes from the biochemical activity of life.

在地球上， 大气层中90 %的甲烷来自于生命的生物化学活动。

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Conclusion After increasing the uptake of creatine, the muscle biochemical activity was improved and the metabolic rate of cells was increased.

结论增加肌酸摄入量，能改善肌肉生化基础，增强组织细胞代谢能力。

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No one understands on a biochemical level why physical activity might help the brain.

在生物化学层面上，没有人能理解为什么身体锻炼有益于大脑。

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Insulin, the ligand binds to its receptor, creates a change through a kinase activity that's exposed, which leads to other biochemical changes, which leads to a change in cell behavior - in this case the cell behavior is that more glucose transporters are brought to the membrane and more glucose can enter the cell.

胰岛素,一种能够与受体结合的配体,通过其暴露出的激酶活性引起的变化,导致了其它后续生化变化的发生,进而使细胞行为发生改变,这个例子中的细胞行为就是,更多的糖载体被带到细胞膜表面,这样更多的糖分子进入到细胞内部

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The are engineering fluorescent proteins to detect biochemical activity.

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The trick Dr Chiang and his colleagues used was to suppress the activity of one of the genes in the biochemical pathway that trees employ to make lignin.

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