Which of the following helps maintain the resting membrane potential of a neuron?Passive transportActive transportMembrane selective permeabilityA.II onlyB.III onlyC.I and III onlyD.I, II, and IIISubmit
Question
Which of the following helps maintain the resting membrane potential of a neuron?Passive transportActive transportMembrane selective permeabilityA.II onlyB.III onlyC.I and III onlyD.I, II, and IIISubmit
Solution
The resting membrane potential of a neuron is maintained by all three options: Passive transport, Active transport, and Membrane selective permeability.
Passive transport allows ions to move down their concentration gradient, which contributes to the resting membrane potential. Active transport, specifically the sodium-potassium pump, maintains the concentration gradients of sodium and potassium ions across the membrane, which is crucial for maintaining the resting membrane potential. Membrane selective permeability refers to the membrane's ability to control what enters and exits the cell, which also plays a role in maintaining the resting membrane potential.
So, the answer is D. I, II, and III.
Similar Questions
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
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+.
Resting membrane potentials are important to neuron function because they:conserve energyprovide potential for future electrical communicationincrease the potassium levels outside the cellresult in high concentrations of sodium inside the cell
During the resting potential of a neuron, which of the following is LEAST likely to be found in large quantities INSIDE the neuron?
Which event occurs during neuronal depolarization? a. membrane potential returns to normal b. cations leave the cytosol c. membrane potential remains stable d. membrane potential decreases e. plasma membrane becomes less permeable
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