The Direction of Change in Membrane Potential, in Response to a Stimulus

question 20

Multiple Choice

The direction of change in membrane potential, in response to a stimulus that initiates a graded potential, is dependent upon

• A) that membrane's threshold potential.
• B) the gating of potassium channels only.
• C) the changes in ion concentration across the membrane.
• D) the ion channels that are opened or closed.
• E) the gating of sodium channels only.

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