2005_campbl05c

2005_campbl05c - Polymers, Monomers, and Lipids polymer...

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1 Chapter 5c: The Structure and Function of Macromolecules (Proteins) Polymers, Monomers, and Lipids nucleotides polynucleic acids amino acids proteins polypeptides monosaccharides carbohydrates polysaccharide monomer category of biomolecules polymer Protein Overview ± Major constituent of most cells (>50% dry weight) ± Highly sophisticated molecules (or multi- molecular complexes) ± Extremely large number of unique proteins exist ± They are polymers folded into specific conformations (shapes) ± Conformation and functional-group chemistry controls function ± Made up of 20 different types of amino-acid monomers ± Proteins define what an organism is, what it looks like, how it behaves, etc. (responsible for most phenotype) ± You are your proteins! Protein Function Globular versus Fibrous Fibrous protein (e.g., collagen) Globular protein (e.g., hemoglobin) Just know general shapes Enzymatic Catalysis Globular protein
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2 Monomer (amino acid) Structure “R” group Amino Acid Structure The chemistry of R groups distinguishes amino acids and their properties Amino Acid Ionization Amino Acid Types Uncharged Gln Q Glutamine Uncharged Asn N Asparagine Highly hydrophilic, negatively charged
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This note was uploaded on 06/03/2011 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

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2005_campbl05c - Polymers, Monomers, and Lipids polymer...

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