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 cnx.org/contents/8d50a0af-948b....
***Further Reading Suggestions***
-Learn more about the fish disease "Ich?" www.sciencedirect.com/topics/...
-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. cnx.org/contents/jVCgr5SL@15....
-Learn more about diffusion's role in the lungs: www.ncbi.nlm.nih.gov/pmc/arti...
The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. Learn more about our videos here: www.amoebasisters.com/our-videos
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MUSIC:
Our intro music designed and performed by Jeremiah Cheshire.
End music in this video is listed free to use/no attribution required from the KZbin audio library kzbin.info...
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TRANSLATIONS:
Hindi Subtitles Credit: Alisha Aggarwal
Some translated subtitles on our videos were translated by the community using KZbin's community-contributed subtitle feature. After the feature was discontinued by KZbin, we have another option for submitting translated subtitles here: www.amoebasisters.com/pinkys-... We want to thank our amazing community for the generosity of their time in continuing to create translated subtitles. If you have a concern about community contributed contributions, please contact us.
Our Amoeba Sisters en Español channel has our videos dubbed in Spanish! / @amoebasistersespanol

[@AmoebaSisters]

We often put a time-stamped table of contents in the video description (check out our video description), but we thought we'd pin it here too for convenience :) 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?

[@fadi8166]

Amoeba Sisters please stop. i hate how you constantly make gaming references. We watch you so much in biology. I’m sorry but please. The gaming references kill me. Literally portal references. I don’t even want to take credit for the class anymore because of your Naruto and portal references. Thanks. 🙏🐪

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This video is funny

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Amoeba Sisters be mine sister cause my teacher is bioenfugy

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Fadi Ghazal don’t watch here then

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who has an exam tomorrow?

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Me

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Me

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next week

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Right now

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this morning

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Amoeba sister you guys teach better than my own biology teacher lol

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Hey i am a biology teacher! (but i make students watch these videos all the time) I can't visually explain it better, so why would i?

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Matthew Cowell ur one of those teachers that say “BELL DONT DISMISS YOU I DO”

[@vannie27]

@@matthewcowell Right there with you!

[@twitch_kingpio6378]

Staright facts

[@ericcartman9180]

so true

[@clanmeademagruder9692]

I just learned more about diffusion in 7 minutes than I would in my science class lol.

[@mrpoopbutmrp9876]

Lmao same

[@abebro3023]

Same

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CFC fvfv

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90% people watched it for school 10% just like science

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@Lm3rr yes

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i like science

[@Julesccx]

I slept through my diffusion lesson so I'm here.

[@krazykat1412]

Thank you for this video! As a college bio student its nice to hear another explanation of stuff other than just lecture classes. The fish story at the beginning is also a great way to help get people interested and to stay focused on the content you are teaching as it is pretty difficult for me to stay focused when tons of info is being thrown at me. Thank you for helping me study for my exam!

[@VijayThakur-wr1qu]

....And again another scientific concept explained in its most interesting way by the amoeba sisters!

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Christmas always comes early when Amoeba Sisters uploads.

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Your videos are always packed with fun and "wow" moments!

[@Celti_]

1:47 Diffusion is when the net movement of a substance travels DOWN its concentration gradient. This means it moves from a high concentration to a low concentration. Diffusion doesn't just happen in water, it happens when you spray an air freshener. 2:46 Net movement = overall movement but it doesn't mean the molecules can't move around the other direction or stop moving altogether. The overall/net movement is from a high concentration to low concentration until equilibrium is reached. Diffusion is a passive transport, meaning an input of isn't required. Kinetic (movement) energy is enough. Passive transport does not require added energy. 3:44 Facilitated diffusion is a type of diffusion when molecules still have a net movement from a high concentration to a low concentration but because the ion sizes are too large to travel directly through the plasma membrane, the ions travel through proteins. 4:21 Factors that can affect the speed of diffusion: temperature (higher temperature would mean more movement of the molecules, increasing diffusion rate), distance (the greater the distance that needs to be travelled, the slower the diffusion rate), characteristics of the solvent (is the solvent dense? This could slow to molecules down and decrease the diffusion rate), characteristics of the substance travelling (substances with greater mass will have a lower diffusion rate compared to a substance with less mass), characteristics of the barrier/plasma or cell membrane if it's passing a barrier (small non polar substances pass through a cell membrane easier than large polar substances) and the surface area/thickness of the cell membrane (a large surface area and thin membrane = faster diffusion compared to small surface area and thick membrane).

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Dang this comment helped me complete my biology work

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who's here during online school because ur teacher sent you a link because you're doing a lab?

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Omg I am lol

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@@nadiatalal1 lol same

[@natalielime3167]

The egg one

[@rosieleaverton]

Ohhh. That Ich stuff must've been what affected the fish in that one episode of Spongebob Squarepants! Interesting!

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I'm doing an online course and we're given a textbook and told to teach ourselves Your videos are amazing😊

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I'm not even in school anymore but heck I'll watch these

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ok

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You could have just started with "So today we're going to talk about how farts work!"

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LOl

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I wish there had been such great learning experiences around "when I were a lad" :). How can kids not be excited to learn when science is presented and taught this well!? Wonderful!

[@milkman445]

I feel like this has been more informative than the entirety of my GCSE course

[@Carito680]

Love the art, love the funny little quotes, love the content, love that this is going to be on my test soon. Thank you Amoeba Sisters!

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I'm in anatomy and physiology 1 and your videos saved me!!

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Wow what’s this? NEW Original Amoeba Sisters content!😱 Never thought this day would come

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This literally makes so much more sense than in the book

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Awesome and easy to understand. Thank you. 😊

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you sisters are my literal science teachers rn since its lockdown my teacher makes us watch u guys

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Who's here from biology class

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Me

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Me

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i love your channel, lot of support from me!!!!!! keep making these kinds of videos, for entire biology

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The fact that ur videos make more sense that want my teacher tells me amazes me. Keep it up

[@rainbowgirl9295]

this is so helpful since I mostly fall asleep in most of my classes especially biology chemistry and maths and we cannot forget physics so yeah thanks for not letting me sleep and helping me with diffusion.

[@alexandrashields2600]

"Lazy River" you guys crack me up! Thanks for the great video!

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Thankyou soooooo much! GSCE’s are hard after coming from Australia and I’m doing Triple Science, so you are helping a lot :D. Thanks for this channel!

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Love the way you explain stuff, really helped with science, and I am subscribing

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Same

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& there u are a new terrific video by amoeba sisters .... Seriously i really love your videos .

[@altheareginacruz9712]

I couldn't understand our lesson no matter how many times I read it. This really helped me in understanding what the hell is diffusion😆

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you guys are amazing! i am learning so much!

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It's so hard to pay attention to the info with the picture. They're so funny!!!! I love it.

[@clownemojionyourrightshoul4823]

I don't even take science classes at school but this video was really fun and easy to understand! (I came across the word "diffusion" while prepping for my geography test and wasn't sure if I really grasped what it means! :,D)

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I AM brasilian and, i watch your videos to learn inglish

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I watch these science videos at school! Keep up the good work!

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I am an exchange student in Germany, so it is nice to have you to explain this to me in English.

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This makes so much sense now, thank you

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In my class we do two lessons a day so your channel helps for the test next week.

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as a fish keeper, the thing about methane blue is true, it is really helpful with treating fish

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easy to understand!so good!

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I remember watching these freshman year… it helped thanks

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This is so cute I can't! And awesome explained! thanks

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Well explained!

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My 9th grade biology teacher Mrs.Spear told me that you used to be a teacher at Vines High School in Plano! I was so surprised! My 7th, 8th, and 9th grade science classes ALWAYS showed us your videos. It's such a great help. It's also really cool that you used to be our school's teacher! Were you for real..? hmm ;)

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I subbed even though it's the first time watching ur channel :) nice content

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Great Video this was so helpful to me please keep the videos coming .

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Wow good job, better than my teacher's lectures and khan academy videos she links to them. Thank you.

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I LOVE YOU AMOEBA SISTERS, YOU SAVED MY GRADES I LOVE YOU SO MUCH

[@TheofficialEgg.]

Thank you so much I have a bio test tomorrow and I feel so much better about it

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You make science fun and me happy

[@chickleet4115]

Explained it so well! Thanks

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Please do a video on dissolving! You teach me so much and I know it would be helpful.

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Thank God u girls exist!!! Please don't stop this amazing work, if possible! 😘💓

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simp

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Tysm! I have this for science and ur teaching me more than school

[@infinitemusic888]

Hey Amoeba Sisters, this Diffusion video you made is cool! Your videos are helpful to our learning. Remembered learning this back then in Yr 9.

[@xxmichael-aftonxx1426]

You are perfect you teach me better than myself the animation simplifies everything and the reference is amazing

[@baldbuffbilly]

Oh my goodness, I was trying to learn wth diffusion is for so dam long, amoeba sisters, thank you so much, you teach better than my freakin biology teacher does, who need school when I have you!

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I'm trying to get you guys to a million subs!! your videos are the best and help me understand biology more! keep making videos💜💜

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I love your channel too much!

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Same. 2 yrs off bio n still learning w/ Pinky n Petunia. 💕

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Thanks for this video, lt cleared all my doubts 🙏

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Lovely teaching

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You guys teach better than teachers

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i learned so much more with this than from my bio teacher lol

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You guys are simply awesome...

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@Samuel Williams dudes pressed

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This video helps me in my Agriculture course

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this is extremely helpful!!!

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these are so nice for college. Thanks.

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Thank you soo much, and lots of love ❤️

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How bout you diffuse the Cuban missile crisis

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wow

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Is it bad that I binged like 3 videos and I already know more than everyone in my class?

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It is so useful to me thank u!😍

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The length of that intro tho...

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I love the analogy she was using!!!!!!

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good video!

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you guys definitely created that kind of eagerness to learn science

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Hi!!!!!!!! Thank you!!!!!!! (Now I definitely can't go to bed! Not without watching this!)

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Thanks this really helped me

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Sweet video! Any chance you'd do gene expression and epigenetics?

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way better than my biology teacher and textbook combined lol

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brilliant video

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teacher: how did you study for the midterm? me: *shows the 79 video playlist i watched the night before*

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Thx for work :D

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Thank you! I'm going to share this with my 6th grade students as we talk about the movement of oxygen and carbon dioxide related to the respiratory system. :)

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Didn't ask

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It would be more interesting if you can make more detailed videos on different concepts. After all biology is all about details!

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