Quiz_ Questions on 2.2 & 2.3

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1/12/22, 8:30 PM Quiz: Questions on 2.2 & 2.3 https://canvas.eee.uci.edu/courses/42374/quizzes/199820/take 1/3 Questions on 2.2 & 2.3 Started: Jan 12 at 3:44pm Quiz Instructions 1 pts Question 1 Repolarization is driven by K+ permeability. The inactivation gate reduces permeability in the voltage-gated K+ channel Voltage-gated channels for Na+ and K+ have a similar threshold Vm. Select with statement is not true about action potentials. 1 pts Question 2 At time i , what is the most likely state of a Na channel? +

1/12/22, 8:30 PM Quiz: Questions on 2.2 & 2.3 https://canvas.eee.uci.edu/courses/42374/quizzes/199820/take 2/3 The activation gate is open and the inactivation gate is closed Both gates are open The activation gate is closed and the inactivation gate is open Both gates are closed 1 pts Question 3 Yes, but the peak Vm will be lower than at time iii No, it is not possible to trigger an AP at that time. Yes, but the threshold is greater than -55 mV. Can another action potential be triggered at time vi ? 1 pts Question 4

1/12/22, 8:30 PM Quiz: Questions on 2.2 & 2.3 https://canvas.eee.uci.edu/courses/42374/quizzes/199820/take 3/3 Not saved The AP would not propagate because it did not originate at the spike-initiating zone The AP would propagate toward the cell body The AP would only travel toward the terminal What would happen to an action potential (AP) if you strongly depolarized the membrane with a stimulating electrode near the axon terminal (i.e. at the distal end)? Submit Quiz

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