Exploring Nerve Signaling
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Questions and Answers

Which type of ion channels open and close depending on changes in the cell membrane?

  • Voltage gated channels (correct)
  • Mechanically gated channels
  • Phosphorylation gated channels
  • Ligand gated channels

    • What determines the ion selectivity of an ion channel?

  • The functional states of the channel
  • The type of ions present in the cell membrane
  • The number of protein molecules in the channel
  • The diameter of the pore (correct)

    • Which functional state of an ion channel is associated with the resting membrane potential?

  • Closed and activatable (correct)
  • Open
  • Closed and non-activatable
  • All of the above

    • What contributes to the resting membrane potential?

    <p>Diffusion of ions and electromagnetic forces</p> Signup and view all the answers

    What is the typical value of the resting membrane potential?

    <p>-70mV</p> Signup and view all the answers

    What is depolarization of the membrane potential?

    <p>Vm&gt;-70mV</p> Signup and view all the answers

    What is hyperpolarization of the membrane potential?

    <p>Vm&lt;-70mV</p> Signup and view all the answers

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