The concentration of Na+ within a cell is required to be ______ than the external concentration

a. lower
b. higher
c. the same

thank you in advance:)

Question

The concentration of Na+ within a cell is required to be  ______ than the external concentration

a. lower
b. higher
c. the same


thank you in advance:)

anonymous · Answer

I really didn't know the answer to this question, so I did some research, and pulled up this article: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/D/Diffusion.html (Look under "Direct Active Transport.") And also this article: http://en.wikipedia.org/wiki/Na%2B/K%2B-ATPase (Look under "Resting Potential.") ~~~~~~~~~~ Both of these articles tell us that the concentration of sodium ions INSIDE the cell is LOWER than the concentration of sodium ions outside the cell. This is apparently so that the cell doesn't fill up with too much water, and burst.

anonymous · Answer

Aw, well thank you for your time and effort:)

anonymous · Answer

It's no problem.