Which statement is TRUE regarding the Na+ voltage-gated channel in neurons? A) Similar to the potassium ion channel, it exists as a tetramer in the membrane. B) Aspartate residues are part of the voltage-sensing helices. C) Positive membrane potentials on the extracellular side will close the channel. D) Ion specificity comes from the voltage-sensing helices.

Which statement is TRUE regarding the Na+ voltage-gated channel in neurons? A) Similar to the potassium ion channel, it exists as a tetramer in the membrane. B) Aspartate residues are part of the voltage-sensing helices. C) Positive membrane potentials on the extracellular side will close the channel. D) Ion specificity comes from the voltage-sensing helices.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 7UC: Describe the contribution of each of the following to establishing and maintaining membrane...

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