Chapter 7
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Chapter 7
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Question:
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.