Biosynthesis of Bile Acids

Bile acids, which exist mainly as bile salts, are polar carboxylic acid derivatives of cholesterol that are important in the digestion of food, especially the solu-bilization of ingested fats. The Na+ and K+ salts of glycocholic acid and tauro-cholic acid are the principal bile salts (Figure 25.41). Glycocholate and tauro-cholate are conjugates of cholic acid with glycine and taurine, respectively.

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