The resting membrane potential depends on two main factors that influence the magnitude and direction of Na+ and K+ diffusion across the plasmid membrane.What are these two factors?
Question
The resting membrane potential depends on two main factors that influence the magnitude and direction of Na+ and K+ diffusion across the plasmid membrane.What are these two factors?
Solution
The two main factors that influence the magnitude and direction of Na+ and K+ diffusion across the plasma membrane, thus determining the resting membrane potential, are:
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Concentration Gradient: This refers to the difference in concentration of ions (Na+ and K+) inside and outside the cell. The ions naturally move from an area of higher concentration to an area of lower concentration. For example, K+ ions tend to move out of the cell where they are more concentrated, while Na+ ions tend to move into the cell where they are less concentrated.
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Membrane Permeability: This refers to how easily ions can cross the cell membrane. The cell membrane is more permeable to K+ ions than to Na+ ions due to the presence of 'leak channels'. This means that K+ ions can move out of the cell more easily than Na+ ions can move in, contributing to the negative resting membrane potential.
These two factors work together to establish and maintain the resting membrane potential.
Similar Questions
The maintenance of a resting membrane potential is due to three factors:(1) The concentration of K+ the membrane is than that the membrane.(2) The concentration of Na+ the membrane is than that the membrane.(3) The membrane is permeable to K+ than Na+.
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
Select all that applyWhich factors contribute to the generation of the resting membrane potential? (select all that apply)Multiple select question.Diffusion of ions down their concentration gradients through the membraneSelective permeability of the membrane, allowing some ions to pass more easily than othersThe electrical attraction of cations and anions to each otherThe movement of water across the membrane into a region of higher concentration of solute
Potassium and sodium ions play an important role in resting membrane potential. Which ion has the larger concentration inside the cell?Multiple choice question.SodiumPotassium
Resting membrane potential:Results in high concentrations of Na+ on the outside of the cellIs maintained by the sodium/potassium ATPase pump continuously pumping Na+ into the cellResults in the outside of the cell having a -70mV polarity relative to the inside.Is the process by which cells communicate
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