active transport definition

  • noun:
    • The action of a chemical material through a gradient of concentration or electric potential within the course opposite to normalcy diffusion, calling for the spending of energy: active transport across a cell membrane layer.
    • transport of a substance (as a protein or medication) across a cell membrane up against the concentration gradient; calls for an expenditure of energy

Related Sources

  • Definition for "active transport"
    • The action of a chemical material through a…
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  • Hypernym for "active transport"
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