Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 35, Problem 8RQ

For a neuron to fire an action potential, its membrane must reach.

  1. hyperpolarization
  2. the threshold of excitation
  3. the refractory period
  4. inhibitory postsynaptic potential

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Students have asked these similar questions
Which of the following describes a threshold potential?   A brief reversal of the charge difference across a neuron's plasma membrane   The membrane potential at which voltage-gated sodium channels in a neuron axon open, causing an action potential   The membrane potential of a neuron at rest
Which of the following are the likely explanations for the failure of a postsynaptic neuron to trigger an action potential? Select all that apply. The EPSPs are neutralized by the neurotransmitter The summation of IPSPs and EPSPs is insufficient to depolarize the cell to threshold The synapses generating the EPSPs are too close to the axon hillock The synapses generating the EPSPs are too far from the axon hillock
Which of the following can increase the likelihood of a neuron generating an action potential?     tetrodotoxin (TTX)     reducing the external concentration of K+     decreased diffusion of K+ through leak channels out of the neuron     All of the above

Chapter 35 Solutions

Biology 2e

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