Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 32, Problem 3SQ

An action potential begins when ___ .

  1. a. a neuron reaches threshold potential
  2. b. voltage-gated potassium gates open
  3. c. voltage-gated .sodium gates dose
  4. d. sodium-potassium pumps stop operating
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Neurotransmitters are released from neurons due to the opening of ____________. Select one: a. voltage gated Na channels b. voltage gated  K channels c. voltage gated Ca channles d. voltage gated Cl channels e. voltage gated proton channels
Action potentials ____. Select one: A.can occur only once B.can move up or down an axon, away from or towards the cell body C.move in a one way direction towards the cell body D.move in a one way direction away from the cell body
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