Resting Membrane Potential

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This activity contains 5 questions.

Concentration gradients exist across the plasma membrane. Specifically, there are ________.

equal concentrations of sodium and potassium ions outside the plasma membranemore potassium ions inside and more sodium ions outside the plasma membranemore sodium and potassium ions inside the plasma membrane than outsidemore sodium ions inside and more potassium ions outside the plasma membranemore sodium and potassium ions outside the plasma membrane than inside

The value of the resting membrane potential is ________.

-55 mV-90 mV-70 mV+30 mV-30 mV

The plasma membrane is more permeable to ________.

sodium ionspotassium ions

The resting membrane potential depends on each item below, EXCEPT:

the greater number of potassium leak channels.the greater permeability of the plasma membrane to potassium ions.the greater permeability of the membrane to anions rather than cations.the concentration gradient for sodium ions.the concentration gradient for potassium ions.

The Na⁺/K⁺ pump transports ________.

Na⁺ and K⁺ in the same directionNa⁺ into and K⁺ out of the cellmore K⁺ into than Na⁺ out of the cellNa⁺ out of and K⁺ into the cellequal numbers of Na⁺ out of and K⁺ into the cell

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