Hyperpolarization, or afterpotential, occurs becauseMultiple Choicemore sodium ions diffuse into the cell than potassium ions diffuse out of it.the extra efflux of potassium ions causes the membrane potential to become slightly more positive than the resting value.potassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close.the increased potassium ion permeability lasts slightly longer than the time required to bring the membrane potential back to its resting level.
Question
Hyperpolarization, or afterpotential, occurs becauseMultiple Choicemore sodium ions diffuse into the cell than potassium ions diffuse out of it.the extra efflux of potassium ions causes the membrane potential to become slightly more positive than the resting value.potassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close.the increased potassium ion permeability lasts slightly longer than the time required to bring the membrane potential back to its resting level.
Solution
Hyperpolarization, or afterpotential, occurs because potassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close. This is because the potassium channels are slower to close than the sodium channels are to open, leading to a brief period where more potassium ions are leaving the cell than sodium ions are entering it, causing the cell to become more negatively charged than its resting potential. This is known as hyperpolarization.
Similar Questions
Depolarization occurs becauseMultiple Choicepotassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close.more sodium ions diffuse into the cell than potassium ions diffuse out of it.the extra efflux of potassium ions causes the membrane potential to become slightly more positive than the resting value.the increased potassium ion permeability lasts slightly longer than the time required to bring the membrane potential back to its resting level.the inactivation gates of the voltage-gated sodium ion channels begin to open, and the diffusion of sodium ions decreases.
Hyperpolarization occurs because voltage-gated Blank______ channels stay open longer than required to reach resting membrane potential. Multiple choice question.sodiumpotassium
dentify why the membrane becomes hyperpolarized following the repolarization phase of an action potential.Multiple choice question.Voltage-gated K+ channels remain open for a short period of time after reaching RMP; allowing K+ to diffuse out of the cell.Voltage-gated Na+ channels remain open for a short period of time after reaching RMP; allowing Na+ to diffuse out of the cell.Voltage-gated Na+ channels remain open for a short period of time after reaching RMP; allowing Na+ to diffuse into the cell.Voltage-gated K+ channels remain open for short period of time after reaching RMP; allowing K+ to diffuse into the cell.
Reestablishment of the resting membrane potential occurs throughMultiple ChoiceActive transport of sodium and potassium ionsDiffusion of sodium and potassium ionsActive transport of only sodium ionsActive transport of only potassium ions
Depolarization of a cell membrane occurs becauseMultiple ChoiceSodium ions are blocked from entering the cellMore sodium ions diffuse into the cell than potassium ions diffuse out of itThe concentration of sodium and potassium ions in the extracellular fluid is at equilibriumThe concentration of sodium and potassium ions in the cell is at equilibrium
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