BCH 2333 Study Guide - Final Guide: Relative Permittivity, Hydrogen Bond, Amphiphile
14 Jul 2014
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Document Summary
Water: hydration: interaction of water molecules w/ molecules of another substance. Everything in the body can be put into these two groups: the hydrophilic compartments ( blood, cytosols, the hydrophobic compartments (fat, membranes) Dr 2: f= the force (repulsion) btw 2 charges, separated by a distance r, d- dielectric constant, which measures the capacity of a solvent to separate and to stabilize charged molecules. D is low= opposite charges attract each other so strongly they form a salt: non-polar solvent, polar solvent. D is high= weaker forces btw ions in water. Permits significant quantities of the ions to remain separated: very polar solvent dielectric constant. Water is essential for the stability and the function of biomolecules: the outside polar group makes h-bonds and forms a cage of hydration of immobilize water, known as biological water or bound water. Lay summary: a positivish hydrogen will make a hydrogen bond with an electron pair.
