Class Notes-Macromolecules of the Cell

Class Notes-Macromolecules of the Cell - Macromolecules of...

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Macromolecules of the Cell There are 4 types of macromolecules that make up the structure of the cell: Polysaccharides are polymers of sugars. o Polymer—long chain of… o Bonds between them—glycosidic linkages Polypeptides are polymers of amino acids. o Bonds between them—peptide bonds Polynucleotides are polymers of nucleotides. o Bonds between them—phosphodiester bonds Lipids are macromolecules, but NOT polymers Sugars Differ in length and Glucose Is a 6-carbon aldose sugar Is the carbohydrate source of energy for essentially all organisms Is a monomer found in several disaccharides of biological importance. Is the monomer which makes up energy-rich polysaccharides such as starch and glycogen. Is the monomer which makes up structural polysaccharides such as cellulose *Learn how to draw the structure on the left in figure 5-4 (a) Polymerization Sugars, nucleotides and amino acids form polymers by means of DEHYDRATION (also called condensation) REACTIONS o Dehydration—taking a molecule of water out Polymer degradation Formation of Polysaccharides Polysaccharides include o Disaccharides—two sugar units
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This note was uploaded on 04/14/2011 for the course BIOL 101 taught by Professor Haas during the Spring '08 term at Loyola Chicago.

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Class Notes-Macromolecules of the Cell - Macromolecules of...

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