These reactions are carried out by enzymes and linked through second messengers.

这些反应由酶所引发，且通过第二信使被连接在一起。

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Edward Horsford spends hours in his back garden in London at night and snaps the intricate patterns created by the ever-different reactions with split-second timing.

爱德华霍斯福特晚上花了好几个小时在他位于伦敦的后花园里，就是为了抓住瞬间内发生的连续变化的精密模式。

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In one second, a cell performs about 10 million energy-consuming chemical reactions, which altogether require about one picowatt (one millionth millionth of a watt) of power.

一秒钟内，一个细胞要执行约一千万次耗能化学反应，而统共仅需要约1皮瓦(百万百万分之一瓦)能量。

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Others had similar reactions to the second storm.

CNN: One block, two tornadoes: Life in the crosshairs

The second, which complicates the first, is that political reactions to crashes are by their nature unpredictable.

ECONOMIST: A week on the wild side

The second argument is that the real economic damage is done not by bubbles bursting, but by mistaken policy reactions to the pop.

ECONOMIST: Greenspan lets things simmer