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Unformatted text preview: 1 ESM219 F07 Class meeting 2 Concepts: Chemistry Chemical elements e.g. stoichiometry of E. coli Macromolecules Polysaccharides: polymers of sugars Lipids: polymers of fatty acids Nucleic acids: polymers of nucleotides Proteins: polymers of amino acids Chemical Elements Chemical Elements Chemical Elements b o n d s bonds b o n d s Molecule C h e m ic a l E le m e n ts C h e m ic a l E le m e n ts C h e m ic a l E le m e n ts bonds b o n d s b o n d s M o le c u le Macromolecule = Polymer Atoms (O,N, etc.) Molecules (O 2 , N 2 , etc.) Macromolecules= polymers (proteins, RNA DNA, lipids, polysaccharides) Monomers (amino acids, nucleotides fatty acids, saccharides) Cells Elements C, N, H, O, (P, K, Mg, Mn, etc.) See Handout Numbers in Microbiology Same elements as other life forms Atoms, molecules together as functional groups Special properties Table 3.1, e.g. alcohols Bonds and Interactions Hydrogen Bonds Bind pairs of nucleobases together in DNA Hold amino acids together in proteins Waters H bonding makes it a polar substance Small positive charge on Hs Small negative charge on O Nonpolar, or hydrophobic, substances fear water...
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This note was uploaded on 08/06/2008 for the course ESM 219 taught by Professor Holden during the Fall '07 term at UCSB.
- Fall '07