Campbell_05 - Chapter 05 Macromolecules How Macromolecules...

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Chapter 05 Macromolecules
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How Macromolecules are Made Main Macromolecules Carbohydrates Proteins Nucleic Acids All chainlike molecules called polymers Lipids Polymers – long molecule consisting of many similar building blocks Monomers – make up polymers
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Making Macromolecules Dehydration synthesis – Hydrolysis –
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Carbohydrates Include sugars and their polymers Monosaccharides – Disaccharides – Polysaccharides –
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Carbohydrates Can form rings or are linear Normally have a CH2O ratio Glucose is C6H12O6
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Disaccharides
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Polysaccharides Carbohydrates are the source of energy for most cells These energy carriers are stored in polysaccharides Starch – plants Glycogen – animals
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Structural Polysaccharides Organisms build strong materials from sugars Cellulose – major component of plant cell walls
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Starch vs .Cellulose
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Structural Polysaccharides Chitin – forms exoskeletons of insects
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Lipids Not made of polymers – Hydrophobic Include waxes, oils, fats, phospholipids, steroids
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Lipids Store large amounts of energy Two parts of a lipid Glycerol backbone Fatty acids
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Campbell_05 - Chapter 05 Macromolecules How Macromolecules...

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