The Direction and Amount of Movement of Ions Through an Ion

question 130

Multiple Choice

The direction and amount of movement of ions through an ion channel depends on the concentration gradient of the ion as well as on the voltage difference across the membrane.These two forces acting on an ion are called the

• A) action potential.
• B) electrochemical gradient.
• C) membrane potential.
• D) threshold.
• E) resting potential.

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