That kind of light can break apart biological molecules, so the ozone layer is critical for our protection.

紫外线可以破坏生物分子，所以臭氧层对我们的保护至关重要。

Insulin, a complicated biological molecule, is one of them.

胰岛素，一种复杂的生物分子，就是其中之一。

Scientists back then considered biological molecules to be almost mystical in origin.

当时的科学家认为生物分子的起源几乎是神秘的。

That proved biological molecules were just chemicals that could be created and manipulated in the lab.

这证明生物分子只是可以在实验室中创造和操纵的化学物质。

But many of these biological molecules are polymers — or sequences of smaller molecules — and your cells aren't really equipped to take them up whole.

但是这些生物分子中有许多是聚合物——或更小的分子序列——你的细胞并没有真正的装备来吸收它们。

We can make new medicines, we can target medicines to the right tissues, and we can see biological molecules in living organisms for the first time.

我们可以制造新药，可以将药物靶向正确的组织，可以第一次看到活生物体中的生物分子。

Those large molecules are called biological molecules — also known as macromolecules — and everything that you eat, I hope, is at least partially made of them.

这些大分子被称为生物分子——也被称为大分子——你吃的所有东西，（我希望）至少部分是由它们组成的。

Lots of those plants end up being eaten by other organisms supplying them with the building blocks for other biological molecules and fuel.

许多这些植物最终被其他生物吃掉，为它们提供其他生物分子和燃料的构建块。

In addition to his general work on " chemical bonds" (bonds), or the way that molecules were put together, Linus Pauling also worked on biological molecules.

除了他关于“化学键” （键）或分子组合方式的一般工作外，Linus Pauling 还从事生物分子方面的工作。

So we can attach imaging probes to biological molecules in living animals and use those probes to study how molecules change inside animals and inside cells.

因此，我们可以将成像探针连接到活体动物的生物分子上，并使用这些探针来研究分子在动物体内和细胞内的变化。

If we can understand how they, and other creatures, stabilize their sensitive biological molecules, perhaps we could apply this knowledge to help us stabilize vaccines, or to develop stress-tolerant crops that can cope with Earth's changing climate.

如果我们能够了解它们和其他生物如何稳定其敏感的生物分子，也许我们可以应用这些知识来帮助我们稳定疫苗，或者开发能够应对地球气候变化的抗压作物。