The opposite leaflet does the other thing, the water soluble part points down and the fat points up, so now you have thin region of fat which is surrounded on both sides by water.

相反的部位则有不同的情况,水溶性部分向下,而脂肪向上,所以现在就得到了,两侧均被水包围的薄层脂肪区域

耶鲁公开课 - 生物医学工程探索课程节选

The fascinating part about this layer is that it solves the problem for phospholipids about how to exist in water when half of you wants to be in oil, and that the water soluble part of the top leaflet here, of the top points up into the water, and the fatty acid chains point down.

这层膜的迷人之处在于,它解决了磷脂,如何存在于水中和油脂中的问题,水溶性的顶端部分,向上插入水中,而脂肪链则指向下

耶鲁公开课 - 生物医学工程探索课程节选