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Microbiology: Membrane Transport Concepts

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Terms in this set (4)

  • What is a concentration gradient?

    A concentration gradient is the difference in concentration of a substance across a space or membrane.

  • What is an electrical gradient?

    An electrical gradient is the difference in charge across a membrane or space.

  • Define diffusion.

    Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

  • What is an electrochemical gradient?

    An electrochemical gradient combines both concentration and electrical forces driving ion movement.