Hypotonic, isotonic, and hypertonic solutions (tonicity) | Khan Academy

[@TheMoueez]

bless khan academy , taught this in 6 minutes while my prof took 40 minutes and just confused me, even though i already knew the material

[@hunnuroberts209]

Same here 😃

[@chloegiron]

I just laughed out loud that is me right now 😂😂

[@lynak4942]

😅me too

[@milofrappe2549]

whats ur job now

[@쩡지니]

I have a teacher who does not teach 😂 he leaves everything to us and expects us to succeed in his course. This really helped me in understanding this concept that took me a long time to try to figure out on my own. I have a test tomorrow and I think I'm screwed but this helped me at least a bit to boost up my mark 😂👏🏼

[@Rainbow41_8]

How did you do on your test?

[@sonnia31]

Me too, he just give us textbook and that all. English is my third language and Biology seems to be another language in my opinion 🤣🥰

[@bipin3639]

Same, I am from India and I think that every teacher from my school are same, they just don't do anything. There's one bi*ch here, she says that she doesn't care if anyone understanding or not she will come and complete the syllabus. My whole school is filled with psychopathic teachers

[@Padraigp]

So you learned about it. I mean that's really up to you isn't it. 😂 is he supposed to have told you the answers to the test or told you the subject of the test and then you go find the answers?

[@hhhyt2]

not funny, report your teacher

[@quandisimofantastico9057]

This is the place where are the people with bad teachers go 😂

[@pochettino3012]

Donald Trump I guess your English teacher is pretty bad too huh

[@ecwgct]

THIS COMMENT GAVE ME BRAIN DAMAGE

[@ecwgct]

• Pochettino • the dRAGGGG

[@mihirjoshi9908]

@@pochettino3012 😂🤣

[@jonathanz4386]

100%

[@nikitamos326]

I'm here 1 day before bio IB exam...

[@noahsimons4692]

Nikita Mosidze ayy me 2

[@anonymoushumanbeing8429]

Nikita Mosidze And the chain continues, 1 day left....

[@ishankumar4471]

how did you do?

[@billylardner]

What did people ever do before the internet if they had a bad teacher...

[@BOGObiology]

We failed the class.

[@tammyk6892]

we failed

[@lombardy2959]

they'd probably read this thing called "books" or something, idk. World before the internet was weird

[@ShivamAttargekar-ot3tf]

They used to read the death note

[@ShivamAttargekar-ot3tf]

​@@BOGObiology hey i saw ure video just now same topic

[@V8hacker]

If you are here your teacher failed to do his/her job.

[@calebreynaga1068]

V8hacker Not necessarily. Maybe some people just need to reinforce the concept:)

[@PraxdaZohara]

not always... I can imagine you are not a teacher, therefore you know nothing about the limitations that the educational system puts on us on every level. I am a college professor and I'm here to overcome those limitations of time, overpopulation in class and lack of resources. You still have a lot to learn. Respect your teachers.

[@robat345]

I don't agree.

[@NPWIII]

This is just for a summer assignment

[@jaedyn8678]

You are dumb

[@rivaldy751]

thx so much khan, you saved me from my bio exam

[@Seattle206723]

Once Again Sal is saving my Rear End lol...

[@dheerajkapoor6228]

Awesome video this made me understand way better

[@rachelfreeman3568]

I started using Kahn when I was in 7th grade math before anyone really knew what it was. Now I’m starting my sophomore year of college with a rigorous 6 week biology course. I love these videos and how they’re made so simply

[@jaikishenrajan8100]

amazing thought in just 6mins

[@shraddharajmohan5581]

this is awesome!!! Khan academy is a way better method of learning than actually goin to school. I have my biology exam tomorrow and just a few minutes before i had no clue what isotonic and hypertonic and everything meant because my teacher confused me. After watching this vid everything is clear and i'm pretty sure i'm going to nail the tonicity questions in the exam.

[@Gilbi700]

Sat through a whole class lecture for this and it took 1:59 of this video to make fully grasp the whole topic!!

[@megagangster297]

'Salute molecules' LOL

[@ispotyou9993]

Interesting 🤔

[@birdyyyy]

Khan you beast been trying to understand this instead of just memorize it for the longest time. This helped a lot!

[@ru406]

My brain thanks you.

[@goldendrop1000]

Today I had a 4 hour lecture, this 6 min video was more informational.

[@kingpiano37]

I was so confused and I now finally get it!! Thanks Sal!

[@rheaya4434]

My god you're such a good teacher . I respect u

[@prestosp4nkster932]

God Bless Khan Academy!

[@johnmurphy1867]

Together we stand divided we fall the lack of love is the lack of teaching if we do not help each other to learn more what will we have in the world we are one family and all of you that know what you’re doing always remember take care of your neighbor as yourself 🌈🙏

[@corymarleau8897]

Thanks for making this sooooo easy. This really helped me get through my bio final.

[@anummansoor4978]

God bless you guys what a nice concept you are building up for the students 👍👍👍 hats off to you

[@gilnahnu]

my teacher has been teaching me this for over 2 weeks now and i still couldnt understand, but now i do so thanks mr khan

[@garcia5100]

youre awesome dude! what took 40mins of confusion, took you 6mins of well explained things! thank you very much with what all u do!!

[@hebamahmoud2362]

I can't express how grateful I am!

[@JackieNicole35061]

I am very grateful for you making and posting this video.

[@yogayantra]

this is all clear. My only difficulty to approach Khan Academy videos is that they use black background. It makes it hard for me to watch.

[@last_womann8344]

Ahhhh Khan Academy, thank you SO much for the help!!

[@elmothemilkman99]

Thanks so much, i understand it now

[@NEETASPIRANT-kd2kp]

Very good way of teaching You helped me a lot sir I was confused very badly in this topic thank you

[@shadowyt7315]

Khan academy rocks.

[@sofiakhan8570]

really good now understand thanks!!!

[@adityaupadhyay8571]

Khan is the place to go in enn

[@kami1763]

Thank you so much Khan Academy

[@annejohn-jacob1149]

That's so CLEAR ! I'm joining people to say THANKS !

[@katieroesner2590]

You explain things perfectly!

[@MassDynamic]

Say, Khan, in the diagrams, i think it's better to draw the same amount of solute *inside* the cell for every scenario, hypo, iso, and hyper. generally, only the concentration of solute in the *environment* changes.

[@soukainana2097]

This is very helpful thanks a lot

[@bilgekidsmusicchannel2965]

Helps so much

[@harryschaffer8777]

This is elite content thanks

[@amalobaid8614]

Amazing; simple and easily understandable.

[@Kitana___]

Thank you very much for this!

[@day6atemywallet78]

My teacher is very nice! The problem is we have to go through so much material because that’s how the course is 😭and I feel like I understand but at the same time I don’t understand

[@itsfunction]

thx khan(ye west) . I have bio exam tmrw and just started studying (1:18 am) don't worry guys . always A+ in bio

[@PatrickKato-h3n]

It's because l need to carryout more research on the topic 😊

[@judyvsworld]

thank you so much!!

[@AlohaUlises]

Nice video!!! You got it!!!

[@katrinayadelosreyes1030]

well explained 👍👌

[@nabihahossain3956]

This helped a lot thx

[@Dushyant-Yadav-Original]

im the latest comment. ;) your welcome

[@catalinaespinosa7217]

Te amo señor que hizo este video

[@Gojosaturo4400]

It's Mr.Sal Khan

[@سلميعسكر-د1ك]

Briliaaaaaaant

[@AayushKumar-yw4pe]

Thank you very much sir

[@nickrinderknecht294]

Very helpful:) thanks

[@angelerikaa]

Awesome video!

[@muhammadsohail7638]

amazing teacher

[@ericpalmateer806]

Jees I love this video and this teacher! Great job, thank you. Bless you.

[@jasonnorkeveck4797]

Thanks, very helpful

[@cecip8794]

This helped so much. Thank you

[@I.G_NL]

Thx for helping me

[@srijanshashwat4842]

Very helpful

[@unique999rose2]

It was a very helpful video.... Thanks, Sir

[@مدرسهپزشکی]

thanks alot vey nice

[@afnanali820]

Thanks ❤

[@subhashmodak7890]

Nice explanation

[@caitlynfoster7193]

Thank you for this, I needed it for homework!!

[@Margotrivera1980]

Thank you, this really helped me understand. Before this video I couldn't comprehend this!

[@mikamika4619]

such a great explanation , very clear and simple. Thanks for the video. :)

[@ashleymendez4066]

Love you guys !

[@ChloeA234]

Thank you, helped so much!

[@EliBartlett]

who else is here from a teacher suggesting this video to the class as a good video to watch in preparation for a test?

[@sl-st8mv]

Thank u very much！u hv saved my days！！！！but may i kindly ask if water molecule is larger or smaller than electrolyes？

[@worldfoods6432]

*PERFECT!!!!!!!!!!!!*

[@harendratalukdar1427]

Very nice video

[@aliciamartinez7697]

Prepping for my lab midterm. Thank you for these awesome videos! Everything is explained so well

[@nagato8331]

Thank you for explaining this to me. I was desperate lol

[@shanonee2715]

thank you

[@doctor3267]

Thanks

[@cue1249]

OPWs took me here

[@maliksarwar5114]

thnx...

[@hakizimanamustapha1459]

So i would like to know In both asmosis and diffusion all of them represents the movement of water malecular or diffusion represents the movement of water and osmosis represents the movement of particles Please i need your answer any scientist can answer me!

[@Gojosaturo4400]

How did the net flow work someone please help me 😢😢😢 4:31

[@alanamolana9767]

why in 3rd case solute molecule outside the membrane lessen the amount of water coming in to the membrane

[@ferworldgt8096]

I’m lucky that the guy that is talking on this video was my professor last year lol

[@ethanm9929]

I LOVE YOU SAL YOU'RE MY SENPAI UWU

[@adityaguin4913]

What software do you use for the writings and drawings

[@abcdefghijklmnop1702]

+Aditya Guin SmoothDraw

[@JobenVonDuchestein]

in a hypotonic solution would the cell be considered hypertonic?

[@hwxpaisho7645]

Please I'm so confuse right now as to how is this different from Turgor Pressure?

[@AishaAhmed-i2e]

Hi sir caan you plzzzzz answer my question: would the mass of an egg decrease if the egg was placed in hypotonic solution of 10% salt for 24 hours

[@dheeraj_singh_rajput]

Sir this is write

[@triplemgaming5103]

Who can count how many times he said outside and inside😂 Very helpful video though. Thank you so much🙏🏼

[@eazys5316]

I get it... It helps when I draw out the pictures and I understand it... But isn't the definition of osmosis the movement of water from a high concentrated area to a lower area? Therefore, shouldn't the first image on the left be water moving from the inside to the outside?.... Similarly, for the hypotonic solution you described (3rd image on the right), shouldn't water from the inside should be moving towards the outside (higher concentration solute to lower concentration solute)?.... I know I'm wrong but I don't understand why

[@troybeekman9872]

hi! If a cell has HIGH concentration you want to DILUTE it by adding water to it. You are thinking of it in terms of if there was no cell membrane. If you had a glass of pink water and you added very red water, the red particles would move from high to low concentration like you are describing. But this is dealing with WATER movement, not particle movement. Particles don't move as freely through a cell membrane as water does. Therefore, with a cell membrane separating the concentrations, the WATER would move (because water moves more freely) to the more concentrated area to dilute it down to equal the lesser concentration from outside the cell. Does that make any sense?

[@eazys5316]

YES!!! aye thank you for your taking your time out the way to explain this... I've always been stuck on this for too many semesters in school and I didn't wanna bother asking... so THANKS man, you cleared up for me what I was missing

[@troybeekman9872]

ANYTIME!! I got hung up on this years ago and had it explained to me similar to this, FINALLY. Just passing it forward :)

[@alyssasileo7563]

So having a hypotonic solution would INCREASE or DECREASE tonic pressure?

[@singernabi5357]

Alyssa Sileo increase the tonicity as solute concentration is more😊

[@josephdahdouh2725]

@@singernabi5357 more in the cell

[@harighimire9030]

nice

[@Ace_x77]

Every Kahn video = 99% people bashing their teachers lol

[@reaperplayscomp]

who else is doing this for a lab report for their 10th grade Bio class

[@junsake2797]

can someone tell me if a cell if hypERtonic to a solution, does that mean that the solution is hypOtonic to the cell?

[@theanigamer9]

When your teacher knows they’re not doing a good enough job of teaching the lesson so they recommend you watch videos on it and have you take notes on the videos just to make sure

[@asianpowwow7361]

Hi I go to Santa Fe High School