Practice%20Midterm%201%20Questions0 - Midterm 1 Practice...

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Midterm 1 Practice Questions Part 1 1) At what membrane potential would prevent Na+ influx if the extracellular concentration is 100 mM and the intracellular concentration is 10 m M? (assuming Na-channels are open)? 2) What would happen to the resting membrane potential (Vm) if you remove intracellular Na+? 3) During what phase of the action potential are the most K+ channels open? (Resting, Rise, Fall, etc) 4) Draw ion permeability versus time during an action potential. What ions are involved? 5) What will happen to conduction of action potentials? Decrease in the external Na+ concentration Decrease in the membrane resistance Increase in the longitudinal resistance Decrease in the intensity of the stimulus (but still above-threshold )
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This note was uploaded on 03/31/2010 for the course BIMM bimm 100 taught by Professor Dr.sato during the Winter '08 term at UCSD.

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Practice%20Midterm%201%20Questions0 - Midterm 1 Practice...

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