Diffusion, Facilitated Diffusion & Active Transport: Movement across the Cell Membrane

In this video, we explore:

- Simple Diffusion
- Facilitated Diffusion
- Active Transport

How do they work? What sort of molecules are transported? What is Fick's law?

Made for AQA A Level Biology students studying Unit 1: Biology & Disease.

Enjoy!

[shawnblack]

You just summed up everything my teacher has been trying to teach me for a month in five minutes

[dalilteguh]

Simple, quick, yet summarizes what i studied for 1 month

[gratitude]

Every biology course I have taken has mentioned Diffusion, Facilitated Diffusion & Active Transport: Movement across the Cell Membrane, NOT ONE TIME HAVE I EVER UNDERSTOOD THEM UNTIL NOW! THANK YOU SO MUCH!

[uzeyirveli]

I have a biology teacher who explains these stuff in German! The whole class (except 2 girls) just sit and stare at him and understand nothing. Thankfully we live in this age where I can just google stuff and find these videos. Thank you very much! Great explanation. Now, I don't need to try understand him at all!

[KazokuMugiwara]

Thank you so much. I needed a refresher for my pharmacology final and this explained it very well. Wish me luck!

[kipp]

I'm doing shit in bio. I have finals next week and a test today on this. Thanks so much for doing a substantially better job at explaining than my teacher.

[Biomed_gal]

You explained this so well and has helped massively with a question I have been stuck on in my assignment! Thank you!

[semyt.]

I was stumped on diffusion and this video helped clarify it for my psychopharmacology class. Thanks for keeping it simple!

[sbk]

Bruh, that was perfect. Gotta love vids like this where you can learn an hour worth of stuff in 5 minutes

[inihav]

i'm in year 12 right now. thank you so much!

[maeeshahmehjabeen]

being a student of AS level I am really helped with your videos though its been 6 years of your uploading but it is still helping students!! I feel like just saying thank you is not enough....will always be grateful to you..Take love

[macg]

I was not able to understand what was difference between passive and active transport that the teacher had explained but now the situation has changed..the thing i was trying to understand for 2 hours in lecture it simply take 5.01 sec. ooo its amazing

[SanjayKumar-dtzw]

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[akmalhossain]

Best video that I found in the whole YouTube

[prachinayak]

What I don't understood in classes I understood by watching this vedio.Thank

[elizabethbai]

Your vision is simple and understandable than all the complex biology material I learned, their explaining just mix up. But I like how clearly you video had talk about those biological terms. Thank you.

[kikelomo]

Thanks for the this short summary. I learned a lot in this 5 minutes lecture. This is what teaching is all about. I'm definitely coming back to your page for more lecture. Thanks again.

[MachineWashable]

You helped me do my cell transport project! Thanks so much!

[adanmartinez]

For Ficks Law, why would you need a large surface area and a large concentration gradient on top and a small number on the bottom?
Thank you

[billyhw]

Does glucose move into the cell via facilitated diffusion or active transport?