A resting cell's membrane is more permeable to K+ simply because:K has a higher atomic number than Na.The Na+/K+ ATPase only works in response to a stimulus.There are more voltage-gated K+ channels than voltage-gated Na+ channels in the cell membrane.There are more K+ leaky channels than Na+ leaky channels in the cell membrane. Because ions are electrically charged substances, their movement across the cell membrane followswhat is called an electrochemical gradient, which takes into account both the ion's concentrationgradient AND the electrical charge distribution across the cell membrane (i.e. membrane potential).Given this, Na+ ions moving INTO a resting cell will be moving DOWN their electrochemicalgradient because (choose all that apply):Na+ ions are in lower concentration inside the cellNa+ ions are in higher concentration inside the cellThe electrical charge distribution is more negative on the inside of the cell membraneThe electrical charge distribution is more positive on the inside of the cell membrane

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A resting cell's membrane is more permeable to K+ simply because: K has a higher atomic number than Na. The Na+/K+ ATPase only works in response to a stimulus. There are more voltage-gated K+ channels than voltage-gated Na+ channels in the cell membrane. There are more K+ leaky channels than Na+ leaky channels in the cell membrane.

A resting cell's membrane is more permeable to K+ simply because: K has a higher atomic number than Na. The Na+/K+ ATPase only works in response to a stimulus. There are more voltage-gated K+ channels than voltage-gated Na+ channels in the cell membrane. There are more K+ leaky channels than Na+ leaky channels in the cell membrane.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section: Chapter Questions

Problem 10RE

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