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  2. Diffusion and Brownian Motion  (V12: This is the latest version.)
Diffusion and Brownian Motion
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Highlights: Diffusion moves molecules with no energy cost, but it's slow and indirect.
Abstract: This unit develops models for random, diffusive processes. These are essential for material transport in organisms at the cellular level. Thermal energy drives diffusion, but the particle trajectories are indirect: literally moving in all directions. Here, models based on the random walk are developed for diffusion of large number of particles and the Brownian motion random, diffusive process. This way the transport of oxygen from the capillaries to the cells can be predicted.
Resource Types: Instructor supplement, Clicker question, Lecture materials, In-class activity, Homework
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TOPICS

Physics Topics: 

Thermo & Stat Mech > Probability > Binomial Distribution, Gaussian Distribution, Probability Density

Life Sciences Topics: 

Cross-cutting Biological Concepts > Matter/energy Transfer & Transforms > Material Flow

Human and Animal Physiology > Cardiovascular System > Healthy Cardiovascular Function

Human and Animal Physiology > Respiratory System > Animal Respiratory Variations

Math Topics: 
Algebra; Exponentials and Logarithms; Integral Calculus; Probability

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Copyright:   2021 Mark Reeves, Phoebe Sharp, Pi Nuessle, Rachael Stewart, IBET RAMIREZ-URREA

License:   CC: BY-NC-SA - Attribution, No Commercial uses and Share Alike. Derivative works must have the same license

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