bio lecture 3. macromolecules, proteins

bio lecture 3. macromolecules, proteins - Macromolecules,...

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1 Macromolecules, Proteins Dr. Mark Holbrook Acknowledgements This is a modified version of the powerpoint presented by Brian Philips last spring which itself was a modification of Dr. Menninger’s former powerpoint. Polymers (Greek: many parts) Subunits: Amino acids Peptide bonds between subunits Polypeptide folding Function Enzymes Regulation of enzyme activity Proteins
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2 Polymer Formed by linking monomers via covalent bonds Examples: o Starch, cellulose, glycogen ( poly saccharides) o Proteins ( poly peptides) o DNA, RNA ( poly nucleotides) (monomer = glucose) (monomers = amino acids) Why Polymers? Many different polymers made with small collection of monomers Coping with changing needs Coping with changing needs Cell needs polymer A o Monomers Polymer A Conditions change, cell needs polymer B instead of A o Monomers Polymer B Conditions change, cell needs polymer C instead of B and monomers are scarce o Polymer B Monomers Polymer C
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This note was uploaded on 10/11/2011 for the course BIO 010 taught by Professor Holbrook during the Spring '11 term at Iowa State.

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bio lecture 3. macromolecules, proteins - Macromolecules,...

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