Lecture 15 Carbohydrates

Lecture 15 Carbohydrates - Biol141 Foundations in Modern...

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Biol141 Foundations in Modern Biology Cellular Biology and Genetics Lecture 15 – Friday, September 30 th , 2011 Carbohydrates Reading: Freeman, Emory 2 nd Ed. Chapter 4 (pages 71-79)
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Learning objectives At the end of this lecture, you will be able to: 1) Describe the four structural variables of monosaccharides. 2) Explain the significance of glycosidic linkage formation between two monosaccharides. 3) Explain the five types of polysaccharides. 4) Describe the functions of carbohydrates.
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1. Carbohydrates are carbon molecules with hydrogen and hydroxyl groups. The term carbohydrate or sugar encompases: – The mononers called monosaccharides (means “one-sugar”) Disaccharides , which consist of two monosaccharides Oligosaccharides , small polymbers which consist of between 3 and 20 monosaccharides Polysaccharides , which are composed of hundreds to hundreds of thousands of monosaccharides
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Monosaccharide monomers are simple sugars that structurally vary in four primary ways. 1. Location of the carbonyl group Aldose : found at the end of the monosaccharide Ketose : found in the middle of the monosaccharide
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that structurally vary in four primary ways. 2. Number of carbon atoms present
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Lecture 15 Carbohydrates - Biol141 Foundations in Modern...

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