Week3 - BIPN 100 TA Earth Hasassri Section Tuesday 8-8:50AM...

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BIPN 100 TA: Earth Hasassri Section: Tuesday, 8-8:50AM, WLH 2206 O.H.: Thursday, 6-7PM, Espresso Roma Email: [email protected] Week 3 Handout 1. What are the differences between the Nernst and Goldman equations? When does the Goldman equation reduce to the Nernst equation? 2. The Na + /K + ATPase pump is an electrogenic transmembrane enzyme responsible for active transport in the plasma membrane. a. What role does the Na + /K + ATPase pump play in creating action potentials? b. The drug ouabain is a potent inhibitor of the Na + /K + ATPase pump. What would immediately happen to the resting and action potentials of an axon when ouabain is added? c. What would happen to the resting and action potentials more than 12 hours after adding ouabain? 3. How would the amplitude of an action potential change if extracellular sodium was reduced? Why?
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BIPN 100 TA: Earth Hasassri Section: Tuesday, 8-8:50AM, WLH 2206 O.H.: Thursday, 6-7PM, Espresso Roma Email: [email protected] 4. How does an action potential spread along an axon? What affects its speed of
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This note was uploaded on 03/10/2011 for the course BIPN 100 taught by Professor French during the Winter '07 term at UCSD.

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Week3 - BIPN 100 TA Earth Hasassri Section Tuesday 8-8:50AM...

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