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What is the function of active transport in moving small molecules and ions across the cell membranes? Give an example.
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What is the function of active transport in moving small molecules and ions across the cell membranes? Give an example.

User Kennedy
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Active transport enables cells to move some materials against a concentration gradient. For example, cell can concentrate substances such as sodium and potassium ions in particular locations.

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User Quime Parle
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