Which properties are characteristic of ion channels?a. They are usually lipids.b. They exist on one side of the plasma membrane, usually the intracellular side.c. They can open and close depending on the presence of any of three types of “gates.”d. They permit movement of ions against electrochemical gradients.e. They mediate facilitated diffusion.

Human Physiology: From Cells to Systems (MindTap Course List)
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Chapter3: The Plasma Membrane And Membrane Potential
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Problem 7UC: Describe the contribution of each of the following to establishing and maintaining membrane...
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Which properties are characteristic of ion channels?
a. They are usually lipids.
b. They exist on one side of the plasma membrane, usually the intracellular side.
c. They can open and close depending on the presence of any of three types of “gates.”
d. They permit movement of ions against electrochemical gradients.
e. They mediate facilitated diffusion.

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