Neurons have these projections because one important property, or one important function of neurons, is to communicate with each other.

这些突起,源于神经细胞,一项重要的性质,或者说一项重要的功能,那就是实现信息的交流

耶鲁公开课 - 生物医学工程探索课程节选

These proteins have functions that are essential for life of the cell, they transport molecules back and forth across the membrane.

这些蛋白所起的功能,对于细胞生存至关重要,它们负责转运分子通过细胞膜进出细胞

耶鲁公开课 - 生物医学工程探索课程节选

But they also serve another very important function, and that was the formation and maintenance of a differentiated ethnic identity or in Priestly parlance, the formation and maintenance of a holy peoples separated out from other nations by rules that mark her as God's people.

但是它们也有另外一个很重要的功能，这个功能形成并维护了,一个分化的种族身份，或者用神职人员的说法，这些规则促使了神圣民族的形成和保持,这个民族和其他的城邦区别开来，被标记为上帝的子民。

耶鲁公开课 - 旧约导论课程节选

I couldn't have told you, for example, if we look at a phosphate group, that that's going to be incredibly important in DNA, that it's also an incredibly important group when you're dealing with proteins and whether you're turning the function of a protein on or off.

怎么和化学反应相联系起来的，更不记得其它我更不感兴趣的规律,我不能告诉你，如果我们看磷酸盐,它们对于构成DNA十分重要,也是构成蛋白质的重要组份,它是否能打开或关闭一个蛋白质的功能。

麻省理工公开课 - 化学原理课程节选

So maybe - and here thinking about the pancreas has many functions but one of its important functions is to secrete insulin.

胰腺有很多的功能,其中最重要的功能之一,就是分泌胰岛素

耶鲁公开课 - 生物医学工程探索课程节选

Steroid hormones, on the other hand, molecules like testosterone and estrogen, progesterone, the sex steroids that determine sexual characteristics and are important for reproductive function are molecules that are all derived from a similar source.

另一方面,类固醇类激素,像睾丸激素,雌激素,黄体酮这样的分子,性激素决定了性征,它对生殖功能十分重要,这类分子有着相似的来源

耶鲁公开课 - 生物医学工程探索课程节选

Now that's going to be important when we talk about making human gene - making human proteins inside alternate hosts like bacteria, that they can't do all the things that your cells can do.

这一步骤在我们谈到,利用像细菌那样的宿主,来生成人类蛋白时非常重要,因为细菌并不具备人类细胞的全部功能

耶鲁公开课 - 生物医学工程探索课程节选

In terms of function they're very important because this stem cell which is produced goes back into the population of stem cells and is able to repeat this process to form new committed progenitor cells and to form new stem cells.

但就功能而言这些干细胞则至关重要,因为这类分裂产生的子细胞,依然是干细胞,可以再次重复上述步骤,生成新的定向祖细胞,和新的干细胞

耶鲁公开课 - 生物医学工程探索课程节选