BIOL 201 Lecture Notes - Lecture 8: Phosphatidylcholine, Membrane Transport Protein, Lipid Bilayer
14 Jun 2016
School
Department
Course
Professor
Document Summary
Transporter will undergo conformational change -> release the glucose into the interior of the cell then go back to its original conformation to take in more glucose. Higher the km the lower the affinity of the transporter for the ligand: energetics of ion movements across membranes/facilitated diffusion via ion channels o movement of ions across membranes o. For uncharged molecules, free energy change associated with movement against gradient involves only concentration term. For ions such as na+ or potassium, free energy change associated with movement across membrane is the sum of concentration and electrical terms. Dg = 2. 303 rt log (c1/c2) + zfdv o. For uncharged molecules, free energy change associated with movement down gradient involves only concentration term. For ions such as na+ or potassium, free energy change associated with movement across membrane is the sum of concentration and electrical terms: typical intracellular and extracellular concentrations.
