Match the "Electrical State" of the cell with its description. Polarized Depolarized Repolarized Hyperpolarized when Na+ channels close and K+ is leaving the cell. when K+ channels remain open and the afterpotential occurs. when Na+ channels open and excess Na+ enters the cell. when the membrane is at "rest" and the Na+/K+ pump is maintaining it that way.
Added by Jennifer G.
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There are four electrical states: Polarized, Depolarized, Repolarized, and Hyperpolarized. There are four descriptions of what is happening in the cell at different times. Show moreā¦
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Depolarization and Repolarization Depolarization is the process of changing the membrane potential of a cell from a negative value to a positive value. This occurs when there is an influx of positively charged ions, such as sodium ions, into the cell. Repolarization, on the other hand, is the process of restoring the membrane potential back to its resting state. This occurs when there is an efflux of positively charged ions, such as potassium ions, out of the cell. During depolarization, the cell becomes more positive, which allows for the generation and propagation of action potentials. This is an important process in the functioning of neurons and muscle cells. Once the action potential is generated, repolarization occurs to restore the cell to its resting state. The depolarization and repolarization processes are essential for the proper functioning of cells and the transmission of signals. Any disruptions or abnormalities in these processes can lead to various disorders and conditions.
Adi S.
The cell in the figure is at resting potential. We open sodium channels in the cell membrane; then close the sodium channels after sodium has stopped flowing: We then open potassium channels and close them after potassium stops flowing: The cell will first then it will K+ K+ K+ K+ Na+ K+ Na+ Na+ Na+ Na+ K+ Inside Na+ K+ Na+ Na+ Na+ Na+ K+ Na+ Na+ Na+ Na+ Outside K+ K+ K+ K+ hyperpolarize, hyperpolarize some more hyperpolarize, depolarize depolarize depolarize some more depolarize, hyperpolarize
Madhur L.
Consider the following three diagrams of a nerve cell membrane. They show resting potential, depolarization, and hyperpolarization. Figure out which one is which, then draw them in the order they occur in a cell that undergoes an action potential
Katlin K.
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