Osmosis and Diffusion

[hypermosquito101]

diffusion is the movement of particles from regions of high concentrationn to regions of lower concentration. osmosis is the diffusion of water through a semipermeable membrane. active transport?

[adaption27]

I'm in nursing and this helped a lot.... Thanks

[6teen133]

thank you , you helped me finish my science project because the wording in our book is confusing so thank you

[jesh0833]

very good tutorial

[BibleBlack42]

This video was a great help, I have a test on this tommorow.

[armando98martinez]

this was helpful

[Rickey663]

I am currently in 7th grade. Thank You!!! The only thing i need now is active transport...

[EmSinger100]

mrs walker!!!!!

[mswalkertms]

I am thinking this possibly could be one of my students but your profile says you are 29 so I know that can't be true...

[olonzac11]

@mswalkertms lol

[honeyx66]

I learned this in 7th grade too. Now AGAIN in biology 121 in CC!!!

[asianpridez]

i do i have a biology test this friday

[LiquidPaper240]

actually diffusion can involve a cell mebrane

[thegodstheyvemade]

isnt that osmosis ?

[camelon87]

when you where defining passive transport do you mean moment:movement

[Tlas2]

This helps so much, i can relearn it all! and get an A on my tests! =)(really helps with defining too

[KonRannChaos]

this helps soo much...

[killedxromance]

kewl! i can study on youtube!!!

hellz yea!

[leylalinda]

hahaha me too!

this was helpful :p

[killedxromance]

very helpful!

i have my homework done in class and then i can get my studying on youtube

youtube+studying with books=me having to do nothing but watch and learn o.O

lol oh god now i have to look up sexual reproduction for my friend D=

[leylalinda]

i can never pay attention to my teacher lol..

the only reason why i dont understand things so much is cuz of "language barriers" and believe me, it breaks my heart :( especially when i see other americans getting good grades without studying so much and me getting a few answers wrong just because i didnt understand the question! (even tho i do know the concept). but i guess i have no choice but tu study much more.. part of life

im a visual learner so videos like this are very helpful for me :)

[killedxromance]

gotta point there ;p

[neostryke]

Dear Ms. Walker - this is a good video, please ignore those harsh comments. I'd like to inform you that the content of this video, although basic, is wonderful. I'm a university biology student and I needed to see this visually - visual's often aid in learning. For this, I thank you for putting effort into making a video. I hope other students appreicate this as much as I have and do. Cheers.

[pandathorax]

How fucking long does it take to read one sentence describing passive transport?!

[grahambollardhill]

I know!

[driftke70]

thats a common misconception, im a teacher, and have adhd, the reason add kids get distracted is stuff isnt happening fast enough for their brain to want to take part, hence why people with add are always good at complicated video games, racing cars or motorbikes, are poor at things like golf or origami. I struggled quite alot to watch this video, i was clicking forward every time the voice stopped.

[combatarmspwner12345]

im gonna eat you

[ivanlyw7]

lol

[fionatwf]

this video is so cool! it helped me in my biology test!

[lovelygal198]

cool...kinda lame though

[fletcher3836]

Thanks I'll use this with my grade 8 science class.

[spikesya]

Andrew, I think you will find that active transport requires energy in the form of ATP.

[GrowLLLTigeRRR]

Andrew,

Are you not confusing active transport with xylem transport?

Strasburger's work was with xylem transport I believe while active transport as I understand it involves the movement of materials against a concentration gradient (i.e., from lower to higher concentration) and; therefore, requires energy.

[AndrewKFletcher]

Active transport does not require energy Strasburger proved this in his experiments with a cut tree placed in a bath of picric acid, killing the plant completely, yet active transport continued for several weeks after the tree was killed.

Regards

Andrew K Fletcher