Chapter 7

Last update by Babara on 09/08/2014
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The movement of potassium into an animal cell requires

A) low cellular concentrations of sodium.

B) highcellular concentrations of potassium.

C) an energy source such as ATP or a proton gradient.

D) a cotransport protein.

E) a gradient of protons across the plasma membrane.

Answer:

C) an energy source such as ATP or a proton gradient.



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