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Chapter 5 Macromolecules
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Slide 3 of 14 What is a Macromolecule? Giant molecule Consists of thousands of atoms Carbs, Lipids, Proteins, Nucleic Acids Polymer is a long molecule composed of similar or identical building blocks Monomer Building block of a polymer 3 of the 4 macromolecules are polymers
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Slide 4 of 14 MacromoleculeFunction CarbohydrateEnergy & Structural Support LipidEnergy storage & Membrane components Nucleic AcidsGenetics & Heredity ProteinsStructure, enzymes, transport, & defense Macromolecules
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Slide 5 of 14 Carbohydrates Lipids Nucleic Acids Proteins
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Slide 6 of 14 Let’s Build a Polymer Polymerization is a result of dehydration synthesis rxns Dehydration reaction Removal of water from molecules Also called Condensation reaction Synthesis reaction Building a complex molecule from simpler components
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Slide 7 of 14
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Slide 8 of 14 Polymer Animation 05_02Polymers_A.swf
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Slide 9 of 14 Polymerization has many names Polysaccharide Glycosidic linkage Monosaccharide + monosaccharide Polypeptide Peptide bond Amino acid + amino acid Polynucleotide ???? bond Nucelotide + nucleotide
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Slide 10 of 14 Dehydration Synthesis & Hydrolysis
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Slide 11 of 14 Build up or Break Down Dehydration Synthesis Builds a polymer from monomers (Synthesis) Involves the removal of water (Dehydration or Condensation) Hydrolysis Uses water to break the covalent linkages Splits apart polymers Reverse of dehydration synthesis
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Slide 12 of 14 Some Questions (Page 1) 1. What is a macromolecule? 2. Name all of the macromolecules. 3. Is there any difference between polymers and macromolecules? Why? 4. What is the relationship between monomer and polymer? Why?
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Slide 13 of 14 Some Questions (Page 2) 1. Which macromolecule is not a polymer? Why? 2. What bond type forms from dehydration synthesis? Why? 3. Peptide bonds & glycosidic linkages are what types of bonds? Why?
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Slide 14 of 14 Some Questions (Page 3) 4. What is the name of the type of reactions that break apart polymers? Why? 5. You eat a steak, a protein rich food, what type of reactions will begin to take place in the stomach? Why? 6. Do you need to drink water with that steak? Why?
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