Diffusion

Explore how substances travel in diffusion with the Amoeba Sisters! This video uses a real life example and mentions concentration gradients, passive transport, facilitated diffusion, and explains why diffusion is critical for all organisms. In addition, this video discusses factors that can affect the rate of diffusion.

Time-stamped Table of Contents:
00:00 Intro
0:57 Relating intro event to diffusion
1:45 Diffusion explained
2:57 Molecules still move at equilibrium!
3:33 Diffusion is passive transport
3:45 Facilitated diffusion
4:22 Some factors that can affect rate of diffusion
6:35 Why care about diffusion?

Factual Reference:
OpenStax Biology 2nd Edition, Biology 2e. OpenStax CNX. Aug 19, 2019 http://cnx.org/contents/8d50a0af-948b-4204-a71d-4826cba765b8@15.47.

**Further Reading Suggestions**
-Learn more about the fish disease "Ich?" https://www.sciencedirect.com/topics/veterinary-science-and-veterinary-medicine/ichthyophthirius-multifiliis
-We mention that you can read more about how raising the temperature can increase the rate of diffusion. Here’s an expanded explanation from Biology Stax. https://cnx.org/contents/jVCgr5SL@15.47:xy5C3n_j@10/5-2-Passive-Transport
-Learn more about diffusion’s role in the lungs: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4382809/

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