Chapter 1 - Chapter 1 Properties of living systems: o o o...

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Chapter 1 Properties of living systems: o are complicated and highly organized o biological structures serve functional purposes o living systems are actively engaged in energy transformations (esp. via biomolecules) o can self-replicate o not at equilibrium o in a steady state by virtue of energy flow Biomolecules are mainly composed of H, O, C, and N because o they form the strongest covalent bonds o Carbon all biomolecules contain carbon can form covalent bonds with itself has tetrahedral structure Metabolites Building Blocks Macromolecules Supramolecular Complexes (structure maintained by non-covalent forces) Organelles o organelles only in eukaryotic cells (know general functions) o membranes are supramolecular assemblies that form b/c of hydrophobic interactions Biomolecular Properties o Structural Polarity o Informational o Weak forces maintain biological structure and determine biomolecular interactions
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van der waals < H-bonds < ionic bonds < hydrophobic bonds
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This note was uploaded on 02/09/2010 for the course BIOL 3361 taught by Professor Zhang/spiro during the Fall '08 term at Dallas.

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Chapter 1 - Chapter 1 Properties of living systems: o o o...

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