Under Which of the Following Conditions Would the Current-Voltage Relation

question 12

Multiple Choice

Under which of the following conditions would the current-voltage relation for a channel be nonlinear?

• A) When the voltage across the plasma membrane is very negative
• B) When the ion concentrations on either side of the channel are symmetrical, or because the channel itself is nonrectifying
• C) When the ion concentrations on either side of the channel are not symmetrical, or because the channel itself is rectifying
• D) When the equilibrium potential for the channel is at zero millivolts
• E) When the mean open time of the channel randomly varies

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