Which of these correctly describes the distribution of ions on either side of an axon when it is not conducting a nerve impulse?
a. more sodium ions ($\mathrm{Na}^{+}$) outside and fewer potassium ions ($\mathrm{K}^{+}$) inside
b. $\mathrm{K}^{+}$ outside and $\mathrm{Na}^{+}$ inside
c. charged proteins outside; $\mathrm{Na}^{+}$ and $\mathrm{K}^{+}$ inside
d. charged proteins inside
e. Both a and d are correct

Answer

(e) both "a' and 'd'are correct

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Video Transcript

everybody, This is Ricky. And today I'm walking through problem before from chapter 37. Um, this is a little picture of an axe on at resting potential, and we're gonna be talking about, um, theon a concentration inside the excellent and outside are So, um, inside an axe on that resting potential. We have a good amount of potassium I owns inside and sodium. I owns on the outside. And why is this? Oh, well, we have a high concentration of sodium on the outside so that when we have an electrical impulse running down the axle, um, um, the sodium will rush into the axle on d, polarizing it. And, um, help move the impulse along down the axle. If sodium, there's a high concentration of sodium in on the inside of the axle on, um, the way that the i d. Mechanism for sending a an impulse down the nerves would be different rather than the opening of, uh, but fault educated sodium channels would be a different island. Um, so study was helpful. See, in the next

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