One of the enzymes that often gets activated is an enzyme which converts ATP, a small molecule that is inside all of our cells.

在经常被激活的酶中有一种酶,其功能是转化ATP,ATP是一种,存在于所有细胞中的小分子物质

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When a certain enzyme is activated inside cells, ATP gets converted into a molecule called cyclic AMP, and cyclic AMP is an example of one of these molecules called second messengers.

细胞内的某种酶被激活后,ATP就能转化为一种叫cAMP的分子,cAMP是一种第二信使分子的范例

耶鲁公开课 - 生物医学工程探索课程节选