Equilibrium Potential (Cl-)
The figure shows a cell with the following labeled:
* Chloride (Cl-) ion concentrations (measured in mg/L) inside and outside the cell
* Membrane potential (-70 mV)
* Cl- channel
a) In this situation there is net movement of Cl- ions out of the cell through the Cl- channel (as indicated by the arrow). What would have to change to cause net movement of Cl- INTO the cell? Identify as many ways as you can.
b) Explain how the ways you identified above cause Cl- to move INTO the cell.
Topics:Ion movement, Physiology
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We recommend that you administer these questions as homework and preface the question with these instructions for students:
"For the following question, please respond to the best of your knowledge and using only the information in the question and what you know. Please do not refer to any outside sources (textbooks, notes, internet, etc.). Any reasonable attempt to answer the question will be awarded full credit."