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Unformatted text preview: BIPN 100 Chris Childers Dr. Fortes Winter 2010 Lecture 1 January 4 th Lecture 2 January 6 th Lecture 3 January 8 th Lecture 4 - January 11 th Steady State v. Equilibrium Membrane Physiology: Lipid bilayer, pores, channels, transporters, pumps Na+/K+ Pump Ohms Law relating physics to physiology Ficks law of diffusion Secondary active transport Osmosis pH meter Diffusion Rates Nernst Equation Equilibrium Potentials Ion distributions Nernst Equation cont. Goldman-Hodgkin- Katz Membrane Potentials Current Distinguish steady state from equilibrium. Which of these is more physiologically relevant? Why? Transporting molecules across membranes is one of the most fundamental physiological mechanisms. Lipophilic (hydrophobic) molecules can easily dissolve across the lipid bilayer and are readily transported without the aid of pores, channels etc. Some examples of these molecules include....
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- Spring '08