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Actively maintains the gradient of sodium ions (Na+) and potassium ions (K+) across the plasma membrane of animal cells . K+ concentration is low outside animal cell and high inside the cell. Na+ concentration is high outside an animal cell and low i

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1. Actively maintains the gradient of sodium ions (Na+) and potassium ions (K+) across the plasma membrane of animal cells . K+ concentration is low outside animal cell and high inside the cell. Na+ concentration is high outside an animal cell and low i





 
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