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Homework Help: Nernst potential and reverse potentials

  1. Oct 30, 2006 #1
    I know the following
    ion/inside cell/outside cell
    Cl- 5mM 150 mM
    K+ 130mM 5mM
    Na+ 20mM 140mM
    Ca2+ 10^-4mM 2mM

    How would I find the reversal potential for conductance equally permeable to sodium and potassium?
    How do I find the reversal potential for a conductance equally permeable to sodium, potassium, and chlorine?
    Also, how do I find the nernst potential for each ion at the below external and internal concentrations?
     
  2. jcsd
  3. Oct 31, 2006 #2
    Helllp, please! I tried and phailed T_T

    You use fick's law to get nernst right?
     
  4. Oct 31, 2006 #3
    Have you looked at this?
     
  5. Oct 31, 2006 #4
    Yes. How I use it?
     
  6. Oct 31, 2006 #5
    For reversal potential
     
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