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  2. Passive transport, also known as passive diffusion, is a process by which an ion or molecule passes through a cell wall via a concentration gradient, or from an area of high concentration to an area of low concentration.

  3. Passive transport Definition and Examples - Biology Online

    www.biologyonline.com/dictionary/passive-transport

    In passive transport, substances (e.g. ions and solutes) move across a membrane from a region of their higher concentration to a region of their lower concentration. The movement is described as downhill. Because of this, cellular energy (e.g. ATP) is not required as it is in active transport.

  4. Diffusion and passive transport - Khan Academy

    www.khanacademy.org/.../facilitated-diffusion/a/diffusion-and-passive-transport

    The simplest forms of transport across a membrane are passive. Passive transport does not require the cell to expend any energy and involves a substance diffusing down its concentration gradient across a membrane.

  5. Passive transport - Wikipedia

    en.wikipedia.org/wiki/Passive_transport

    Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. [1][2] Instead of using cellular energy, like active transport, [3] passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes. [1][2][4] Fundamentally, substances ...

  6. Passive TransportDefinition, Types, Examples, and Diagram

    www.sciencefacts.net/passive-transport.html

    What is passive transport, and what does it mean in biology. Also learn why it occurs, with the different types and functions described using examples & picture.

  7. 5.4: Passive Transport Across Membranes - Biology LibreTexts

    bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map:_Raven...

    Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration in a process called diffusion.

  8. 3.5 Passive Transport - Concepts of Biology - OpenStax

    openstax.org/books/concepts-biology/pages/3-5-passive-transport

    Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration in a process called diffusion.

  9. 5.2: Passive Transport - Biology LibreTexts

    bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology...

    Passive transport is a naturally occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration.

  10. Passive transport, also known as passive diffusion, is the passage of an ion or molecule through a cell wall along a concentration gradient, or from a region of high concentration to a region of low concentration.

  11. Passive Transport - (Anatomy and Physiology II) - Vocab, ...

    library.fiveable.me/key-terms/anatomy-physiology-ii/passive-transport

    Passive transport is the movement of molecules across a cell membrane without the need for energy input, driven by the concentration gradient.