{"id":246,"date":"2017-10-27T17:06:37","date_gmt":"2017-10-27T17:06:37","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/sunynutrition\/?post_type=chapter&p=246"},"modified":"2017-11-09T18:19:44","modified_gmt":"2017-11-09T18:19:44","slug":"2-152-glycogen","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/suny-nutrition\/chapter\/2-152-glycogen\/","title":{"raw":"2.152 Glycogen","rendered":"2.152 Glycogen"},"content":{"raw":"
\r\n\r\nGlycogen is similar to starch in that it is a storage form of glucose. Glycogen, however, is the carbohydrate storage form in animals, rather than plants. It is even more highly branched than amylopectin, as shown below.\r\n
\r\n\r\n[caption id=\"\" align=\"aligncenter\" width=\"849\"]\"\" Figure 2.1521 Structure of glycogen[\/caption]\r\n\r\n<\/div>\r\nLike amylopectin, the branch points of glycogen are alpha 1-6 glycosidic bonds, while the linear bonds are alpha 1-4 bonds, as shown below.\r\n
\r\n\r\n[caption id=\"\" align=\"aligncenter\" width=\"468\"]\"\" Figure 2.1522 Structure of glycogen1<\/sup>[\/caption]\r\n\r\n<\/div>\r\nThe advantage of glycogen's highly branched structure is that the multiple ends (shown in red above) are where enzymes start to cleave off glucose molecules. As a result, with many ends available, it can provide glucose much more quickly to the body than it could if it was a linear molecule like amylose with only two ends. We consume almost no glycogen, because it is rapidly broken down by enzymes in animals after slaughter2<\/sup>.\r\n\r\n

References & Links<\/h3>\r\n\r\n1. http:\/\/en.wikipedia.org\/wiki\/File:Glycogen.png\r\n\r\n2. Whitney E, Rolfes SR. (2008) Understanding nutrition. Belmont, CA: Thomson Wadsworth.\r\n\r\n<\/div>","rendered":"
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Glycogen is similar to starch in that it is a storage form of glucose. Glycogen, however, is the carbohydrate storage form in animals, rather than plants. It is even more highly branched than amylopectin, as shown below.<\/p>\n

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Figure 2.1521 Structure of glycogen<\/p>\n<\/div>\n<\/div>\n

Like amylopectin, the branch points of glycogen are alpha 1-6 glycosidic bonds, while the linear bonds are alpha 1-4 bonds, as shown below.<\/p>\n

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\"\"<\/p>\n

Figure 2.1522 Structure of glycogen1<\/sup><\/p>\n<\/div>\n<\/div>\n

The advantage of glycogen’s highly branched structure is that the multiple ends (shown in red above) are where enzymes start to cleave off glucose molecules. As a result, with many ends available, it can provide glucose much more quickly to the body than it could if it was a linear molecule like amylose with only two ends. We consume almost no glycogen, because it is rapidly broken down by enzymes in animals after slaughter2<\/sup>.<\/p>\n

References & Links<\/h3>\n

1. http:\/\/en.wikipedia.org\/wiki\/File:Glycogen.png<\/p>\n

2. Whitney E, Rolfes SR. (2008) Understanding nutrition. Belmont, CA: Thomson Wadsworth.<\/p>\n<\/div>\n\n\t\t\t

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