ch2 - Chapter 2 The Molecules of Life Chemical Components...

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Chapter 2 The Molecules of Life
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Chemical Components of the Cell Water pH – concentration of H + moles per liter Organic and inorganic molecules Macromolecules Proteins Polysaccharides Nucleic acids lipids
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Water Constitutes 70% of all living things Asymmetrical charge distribution Water molecule is polar Polarity increases affinity of water molecules for each other Allows for hydrogen bonding Interacts with hydrophilic residues of many proteins
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pH potential Hydrogen [ ] of H + moles/L Most bacterial live in pH 7 Fig. 02.9
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Small Molecules Inorganic molecules Na + , K + , Mg + , PO 4 3- Organic molecules precursor metabolites (amino acids), ATP ATP <>
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Macromolecules Polymers Large molecules formed from subunits (monomers) Synthesis addition of monomers- dehydration Breakdown withdrawal of water molecule - hydrolysis Fig. 02.11
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Macromolecules Proteins Carbohydrates Polysaccharides and monosaccharides Nucleic acids Lipids
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This note was uploaded on 06/11/2010 for the course MIBO 2500 taught by Professor Walker during the Spring '08 term at University of Georgia Athens.

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ch2 - Chapter 2 The Molecules of Life Chemical Components...

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