Diffusion Animation!

One of the most important processes in biology is diffusion, the movement of particles from high concentration to low concentration. This process is passive, meaning that NO energy is used by the cell to make it happen.
So, how does diffusion work?
We will focus on simple diffusion across the phospholipid bilayer of a membrane, shown here. Notice that we have a high concentration of oxygen on one side of the membrane and a low concentration on the other side. I’m going to give you a second to think about this question: Which direction will the oxygen move? Make a hypothesis.
If you said that it will move down, toward the low concentration area, you are correct. Overall, molecules move from areas of high concentration to areas of low concentration. Another way to say this is that they move DOWN THEIR CONCENTRATION GRADIENT.
But why do they do this? The answer is a bit more complex. Although we sometimes like to use analogies and say that molecules “want” to move from high to low, or that they “like” to have personal space and spread out to avoid being close to others, in reality molecules don’t really “like” or “want” anything.
Instead, diffusion happens because molecules are in constant random motion. Here is a model that shows this. Check it out.
Notice that the molecules move around randomly in every direction, but that overall they move from high to low concentration as they bounce around until there are roughly equal concentrations on both sides of the membrane. So, the net movement is from high to low concentration until equilibrium is reached. Equilibrium is when the concentrations on both sides are equal. But notice that movement continues even after equilibrium is reached. For this reason, we sometimes call this dynamic equilibrium. Molecules are still moving but there isn’t a net movement in any particular direction.
Now, let’s take a look at a model of a really important real-life use of diffusion, keeping you alive by getting oxygen into your blood. Take a deep breath and we’re going to look at what’s happening in your lungs as a result.
When you breathe in, oxygen rushes into your lungs producing a high concentration of oxygen in your lung tissues. This oxygen can then diffuse into your blood where it is picked up by red blood cells which carry the oxygen away. This ensures that the oxygen you breathed in can continue to diffuse down its concentration gradient (from high to low) into the bloodstream, keeping you alive.
Credits:
Music: www.bensound.com/
Lungs from Pixabay: pixabay.com/videos/lungs-anat...

[@madhavchandak707]

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[@BioManBiology]

Thanks, I'm glad it was helpful!

[@user-vk6xs1rb1b]

Helloo

[@shraddha......1306]

Thank you viewer from Maharashtr 😊
You got a new subscriber..

[@BioManBiology]

Thanks! I'm glad you enjoyed the video and thanks for subscribing!

[@jonathanrigby4298]

Thank you! Your excellent animation has helped me to explain how diffusion happens, to one of my students.

[@BioManBiology]

I'm happy to hear that! Have a good one!

[@glennracz4647]

Excellent content. I'm a little smarter now. Bioman- you're my hero!🤙

[@BioManBiology]

😀

[@mareenabowman7495]

You are by one of the best teachers I have seen online by far. Your videos are consise and clear. And your animation makes everything click for me. Thank you so much!

[@BioManBiology]

Thanks!

[@newcreationfloraldesign8229]

Love this informative and quality video! Love you Bioman! You're the best!

[@BioManBiology]

Thanks! I'm glad you enjoyed it!

[@bavaniap9110]

Your Animation is so simple and clear

[@BioManBiology]

Thanks!

[@seharaliofficial5545]

Great video plz make other videos of biology

[@BioManBiology]

Thanks! Yes, I'm planning to make more as soon as I can!

[@suvalakshmiprathiksha5765]

Your videos helps me to learn the concept easier thanks a lot . Can u post some more videos of class 11 .

[@BioManBiology]

I'm happy to hear that! I'm not entirely sure what class 11 is (I'm guessing it is a biology class though😊). I've been pretty busy lately but definitely plan to post more videos as soon as I can! Thanks!

[@NathanielDiesamax-ie9xj]

Thanks

[@BioManBiology]

You're welcome!

[@Art-cq1zy]

Question: at dynamic equilibrium are the concentrations on both sides equal? Im reading mixed things. I heard it can be but not so I’m quite confused about concentrations at equilibrium.

[@BioManBiology]

Yes, they are essentially equal, but the particles are still moving (in both directions across the membrane). But, because they are equal, there is no net movement in a particular direction. Particles are moving both ways at the same rate, so the concentrations on both sides stay basically the same even though movement is happening. Does that help?

[@HitlerStuckxD]

Can you explain? I'm confused about the topic ​@@BioManBiology

[@Hibarosen31281winerperson]

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[@BioManBiology]

You're welcome!

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[@BioManBiology]

Thanks!

[@ruhunduymaaz19]

Thank you!!! ❤

[@BioManBiology]

You're welcome! Glad it was useful!

[@ghuuyy-du9mf]

Who’s last minute before exam? 😂😂

[@BioManBiology]

Best of luck! I hope this helps!

[@user-vk6xs1rb1b]

Helloo

[@bushranoor9260]

Sir can i ask about the uploading of circulation chapter😢😢😢

[@BioManBiology]

Sorry, but I won't be able to animate something that quickly, but hope to get to it eventually.

[@user-lw8rw1lx8k]

Please you have 1 chanel again for Indonesian translate

[@BioManBiology]

Sorry, but I don't speak any Indonesian languages. I think you can get the translation in the subtitles though. Does that work?

[@curiousded]

Lmao