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Author Question: Which of the following is true about threshold for an action potential? A) It is more positive than ... (Read 47 times)

KWilfred

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on: Feb 28, 2019
Which of the following is true about threshold for an action potential?
 A) It is more positive than the resting membrane potential.
  B) Voltage-gated potassium channels begin to close.
  C) Voltage-gated potassium channels begin to open.
  D) The membrane begins to hyperpolarize.
  E) Threshold for a typical neuron is approximately -30 mV.

Question 2

A threshold stimulus is the
 A) depolarization necessary to cause an action potential.
  B) peak of an action potential.
  C) hyperpolarization of an axon.
  D) resting membrane potential.
  E) electrical current that crosses the synaptic cleft.


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BUTTHOL369

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Reply #1 on: Feb 28, 2019
Answer to Question 1

A

Answer to Question 2

A


KWilfred

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Reply 2 on: Feb 28, 2019
YES! Correct, THANKS for helping me on my review

Liddy

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Reply 3 on: Yesterday
Excellent

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