Small molecules, such as drugs, go unnoticed.

小分子，如毒品，就不被识别了。

Even the smallest plastic molecule is not natural.

即使是最小的塑料分子也不是天然的。

Ten-second trivia: A mixture of compounds formed by smaller molecules is called a what?

由小分子组成的混合物叫做什么？

Compared to small molecule drugs, and by this I mean regular drugs, like aspirin, biologics are quite large.

相比起小分子药物，这里我指的是阿司匹林之类的常规药物，生物药品分子挺大的。

Some transition-metal catalysts are the metals themselves. More often, they are small molecules that include a transition-metal atom.

一些过渡金属催化剂本身就是金属。更常见的是，它们是包含过渡金属原子的小分子。

That ring of sclerotic tissue often produces prostaglandins, which are small molecules that trigger the sensation of pain.

硬化的骨组织通常会产生前列腺素，这些小分子会引发疼痛感。

These yeasts eat away at the glucose, breaking down those big, clunky sugar molecules into smaller, simpler molecules.

这些真菌会侵蚀这些葡萄糖，会把那些大的笨重的糖分子分解成更小的分子。

Researchers are learning that Malassezia communicate with our immune system using small, oily molecules called oxylipins that regulate inflammation.

研究人员发现马拉色菌通过一种名为氧化脂素的油性分子与我们的免疫系统传递信息，从而调节炎症反应。

Then there is the target itself, a set of smaller molecules called haptens that are attached to the carrier.

然后是与载体结合的靶物质本身，他们是一组叫做半抗原的较小的分子。

When you chew food, your saliva breaks it down into smaller molecules so it can be detected by those receptors.

当你咀嚼食物时，你的唾液将其分解成更小的分子，这样就可以被这些感受器检测到。

Zooming in even closer, each hemoglobin molecule is made up of four smaller heme molecules, which have iron right in the middle.

再放大看，每个血红蛋白分子由四个更小的血红素分子组成，它们中间有铁。

That's the study of how DNA interacts with the multitude of smaller molecules found within cells, which can activate and deactivate genes.

这是一门科学，关于DNA如何同大量在细胞中的微小分子相互作用，这个过程可以激活或隐藏基因。

This regulates the production of atp, a small energy-carrying molecule produced in mitochondria.

它调节 atp 的产生，atp 是线粒体中产生的一种携带能量的小分子。

Exhaled breath contains trace amounts of hundreds, even thousands, of volatile organic compounds: small molecules lightweight enough to travel easily as gases.

呼气中含有微量的数百，甚至数千种挥发性有机化合物：小分子轻巧，足以像气体一样轻松地传播。

This thin, soft material lets small molecules in, but does not let the organisms out.

这种薄而柔软的材料可以让小分子进入，但不会让生物体出来。

So, when you have, like, a small glucose molecule, it's easy for them to break away.

因此，当你有一个小的葡萄糖分子时，它们很容易分离。

Some enzymes-proteins which catalyse chemical reactions-require the presence of a small extra molecule to do their thing.

一些酶（催化化学反应的蛋白质）需要存在一个额外的小分子才能发挥作用。

More new research from Nature Communications presents a method of adding small fat molecules to chocolate that might someday render tempering totally unnecessary.

更多《自然通讯》的新研究提出了一种方法，在巧克力中加入小脂肪分子，有朝一日或许可以使调温变得完全没必要。

That results in a pulse of released carbon into the atmosphere in the form of smoke and other aerosols and small carbon dioxide molecules.

其结果是碳以烟雾、其他气溶胶和二氧化碳小分子的形式释放到大气中。

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。