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  2. Transcellular transport - Wikipedia

    en.wikipedia.org/wiki/Transcellular_transport

    One example of passive diffusion is the gas exchange that occurs between the oxygen in the blood and the carbon dioxide present in the lungs. [3] Facilitated diffusion is the movement of polar molecules down the concentration gradient with the assistance of membrane proteins. Since the molecules associated with facilitated diffusion are polar ...

  3. Diffusiophoresis and diffusioosmosis - Wikipedia

    en.wikipedia.org/wiki/Diffusiophoresis_and_diff...

    Multicomponent diffusion is diffusion in mixtures, and diffusiophoresis is the special case where we are interested in the movement of one species that is usually a colloidal particle, in a gradient of a much smaller species, such as dissolved salt such as sodium chloride in water. or a miscible liquid, such as ethanol in water.

  4. Fick's laws of diffusion - Wikipedia

    en.wikipedia.org/wiki/Fick's_laws_of_diffusion

    Fick's first law relates the diffusive flux to the gradient of the concentration. It postulates that the flux goes from regions of high concentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative), or in simplistic terms the concept that a solute will move from a region of high concentration to a region of low ...

  5. Diffusion - Wikipedia

    en.wikipedia.org/wiki/Diffusion

    Diffusion is a stochastic process due to the inherent randomness of the diffusing entity and can be used to model many real-life stochastic scenarios. Therefore, diffusion and the corresponding mathematical models are used in several fields beyond physics, such as statistics , probability theory , information theory , neural networks , finance ...

  6. AP Human Geography - Wikipedia

    en.wikipedia.org/wiki/AP_Human_Geography

    The curriculum consists of informational book-related homework, which often requires students to strive to learn information independently. The curriculum teaches about diffusion, human traits, religion, and population clusters. The topics covered by the exam are as follows: [3]

  7. Membrane transport protein - Wikipedia

    en.wikipedia.org/wiki/Membrane_transport_protein

    Examples of channel/carrier proteins include the GLUT 1 uniporter, sodium channels, and potassium channels. The solute carriers and atypical SLCs [1] are secondary active or facilitative transporters in humans. [2] [3] Collectively membrane transporters and channels are known as the transportome. [4]

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