膽固醇-膽固醇是什麼？

糯的類固醇激素代謝在細胞膜中找到，運送所有動物的血漿中的膽固醇。它是細胞膜的哺乳動物的結構要素需要建立適當的膜透性和流動性。

此外，膽固醇是製造膽汁酸、類固醇激素和幾種脂溶性維生素的重要組成部分。膽固醇主要甾醇合成的動物，但小數量其它的真核生物，如植物和真菌中合成。它幾乎完全是原核生物，其中包括細菌之間不存在。

名稱膽固醇源自希臘膽腸吻合術-' （膽）和 '音響 ' （實心）和化學尾碼-ol 酒精，弗朗索瓦 · 德喇 Poulletier 作為首先確定固體形式膽囊結石，膽固醇 1769 年。然而，是只有在 1815 年，化學家歐謝弗勒爾命名複合的"cholesterine"。

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