This energy can take the form of fats, cholesterol, carbohydrates or proteins, and each of these has a respective number of calories.

这种能量以脂肪、胆固醇、碳水化合物、蛋白质的形式存在，它们各自有相应的卡路里。

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Food is any substance, usually composed primarily of carbohydrates, fats, water and/or proteins, that can be eaten or drunk by an animal for nutrition or pleasure.

食物是由碳水化合物，脂肪，水分和（或）蛋白质组成的，并且能使动物通过进食或饮用而获得营养或满足的一种物质。

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They then synthesised the series of amino acids - or proteins - that the region of the genes produce, and tested their effects on human and monkey immune cells.

随后，这组科学家合成了这个区域的基因所产生的氨基酸序列——或者蛋白质，并在人类和猴子的免疫细胞中测试它们的效果。

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Genes direct the making of proteins which do much of the work in building an organism, whether a person or a potato.

VOA: special.2009.11.03

A lot of the examples that we're going to give you in terms of trying out your Lewis structures will be molecule that are used in organic synthesis, or maybe they're molecules that react in interesting ways with biomolecules in your body or proteins in your body.

很多我们将要用来,训练路易斯结构的例子,都是在有机合成中用到的分子，也有可能是那些在你体内的生物分子,或者蛋白质中发生有趣反应的分子。

麻省理工公开课 - 化学原理课程节选

Steroids are small molecules - much smaller than proteins - smaller molecules that tend to be hydrophobic or lipid soluble.

类固醇是小分子物质,比蛋白质小得多,这类小分子是非水溶性的,或者说是脂溶性的

耶鲁公开课 - 生物医学工程探索课程节选

But only metals not polymers, ceramics or proteins can be coated in this way.

ECONOMIST: MONITOR

For instance, learning which microbes in the gut regulate functions such as the digestion of fat or proteins could help in the fight against obesity, researchers said.

WSJ: Gene Map of Body's Microbes Is New Health Tool

To test the role played by key proteins, or hubs, the researchers selectively deleted proteins or genes in the organisms and observed what happened.

WSJ: Genes May Link Disparate Diseases