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Home Q & A Board Biology-Related Homework Help General Biology
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dixoncsk2062 dixoncsk2062
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6 years ago
Action potentials are propagated in a one-way direction down a neuron plasma membrane because
 
  a. the action potential is of insufficient intensity to stimulate the voltage-gated ion channels
  behind it.
  b. the adjacent channels upstream from the action potential are ligand-gated.
  c. the adjacent channels upstream from the action potential are in their refractory period.
  d. voltage-gated ion channels are suppressed.
  e. the adjacent channels upstream from the action potential are at their threshold potential.

Question 2

An action potential is propagated down an unmyelinated neuron plasma membrane because
 
  a. the action potential stimulates voltage-gated Na+ channels adjacent to it.
  b. the action potential stimulates voltage-gated Ca2+ channels adjacent to it.
  c. the action potential stimulates voltage-gated K+ channels adjacent to it.
  d. the action potential stimulates voltage-gated Na+ and Ca2+ channels adjacent to it.
  e. the action potential stimulates voltage-gated k+ and Ca2+ channels adjacent to it.
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StevenSteven
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6 years ago
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dixoncsk2062 Author
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#2
6 years ago
My teacher is very rude and likes to speed his way through a lesson without letting the class ask questions. Thank you for helping me. You're a life saver Slight Smile
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