Week 3 Practice Questions Key

Week 3 Practice Questions Key - TA: Lauren Herzog ATTEMPT...

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TA: Lauren Herzog ATTEMPT THESE PROBLEMS ON YOUR OWN BEFORE LOOKING AT THIS KEY! BILD 2: Week 3 Practice Problems 1) Sodium/Potassium-ATPase contributes to the neurons resting membrane potential. What is the direct contribution of this pump? a. 1 Na pumped out of cell for every 4 K pumped in b. 2 Na pumped into cell for every 3 K pumped in c. 3 Na pumped out of cell for every 2 K pumped in i. Remember…. PumpKin! d. 5 Na pumped into cell for every 3 pumped out e. 3 Na pumped into cell for every 2 K pumped in 2) A change in the resting potential of a neuron would be associated with which of the following I. Influx of Clˉ II. Efflux of K III. Efflux of Glucose IV. Influx of Na a. II and IV only b. I, II, and IV only i. I, II, IV are all ions that will change the resting potential. An influx of chloride or an efflux of potassium will make the potential more negative, and an influx of sodium will cause make the potential less negative. Glucose is not charged and will not change the
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This note was uploaded on 02/05/2011 for the course BILD 2 taught by Professor Schroeder during the Spring '08 term at UCSD.

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Week 3 Practice Questions Key - TA: Lauren Herzog ATTEMPT...

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