BIO 330: General Physiology Grim Fail 2017 Multiple Choice (Place a \"X, by the
ID: 3477284 • Letter: B
Question
BIO 330: General Physiology Grim Fail 2017 Multiple Choice (Place a "X, by the best answer) The following question pertains to the figure shown at the right. A. 8. The when the extracellular sodium concentration was altered. The sodium equilibrium potential of "B" is the equilibrium potential in "A figure shows two action potentials initiated in the same axon. more depolarized (more positive less depolarized (less positive the same as The following two questions pertains to the figure shown at the right. Two different unmyelinated axons are bathed in a solution containing a blocker of voltage-gated sodium channels. Both axons are depolarized to -50 mV at point "0" and then the Vm is measured at different places away from that point of depolarization. 9. The length constant of Axon A is that of Axon B greater than less than the same as 10. With all other factors being constant, Axon B has a diameter that of Axon A greater than less than the same as 11. If the blocker of the voltage-gated sodium channels was removed and action potentials initiated in both Axons A and B, the velocity of action potential propagation in Axon B would be Axon A. greater than 12. Myelination of an axon the same as less than the time constant. -does not affect flashlight -chemical and electrical; into decreases increases 13. Which of the following does a neuron not do? receive inputs -integrate signals 14. When Na gates open, Na follow (a)--gradient(s)-neuron. chemical; into -electrical; into Calculations (Please show work, if necessary, and circle answers) I didn't include any calculation problems here because you've already practiced them in the membrane module. but please make sure to review Nernst Equation and GHK Equation. You will see at least one calculation on the exam.Explanation / Answer
ans.8.
as we can see in the diagram that sodium equilibrium potential of B is less depolarized than A.
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