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Cell Junctions | Cells | MCAT | Khan Academy

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Learn about the three major types of cell junctions and their functions. Created by William Tsai. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/cells/cell-cell-interactions/v/membrane-receptors?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/cells/cell-membrane-overview/v/membrane-dynamics?utm_source=YT&utm_medium=Desc&utm_campaign=mcat MCAT on Khan Academy: Go ahead and practice some passage-based questions! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s MCAT channel: https://www.youtube.com/channel/UCDkK5wqSuwDlJ3_nl3rgdiQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
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Текстовые комментарии (51)
Fajer njr (1 месяц назад)
Why cant this guy be my professor
Kata Reddy (1 месяц назад)
Thank you! :)
Lama Aldakhil (2 месяца назад)
What’s the difference between zonula&desmosome(macula)?
Melbourne Meliodas (3 месяца назад)
Is this comparable to different cells working together? Like for example cells that are only for liver and cells that are for teeth? Is our body an ecosystem as well for our cells?
Rahul Nexen (4 месяца назад)
Easy but not enough
DharmRaj Hatria (5 месяцев назад)
Why don't the water then move in the body from skin?
Dana H (8 месяцев назад)
some ions can pass through Tight junctions - Magnesium for example. Tight junctions are not completely impenetrable
natnotgnat (9 месяцев назад)
Tight junctions are not water and ion tight
EVA doctor'ess (10 месяцев назад)
what about zonula ?
Asg Mir (11 месяцев назад)
Thanku
Mondo Music (11 месяцев назад)
Are gap junctions permeable like desmosomes or are they water tight in between them?
Libyan Guy (1 год назад)
Very simple. Thanks!
Favorites Favorites (1 год назад)
Thank you for making this topic wayyyy easier! 😃
random (1 год назад)
What is the meaning of stress in these scenarios. ( skin and intestine)
AMRITA RAO (1 год назад)
The written words are not clear
aneri patel (1 год назад)
This explanation by you is really helpful.. thnk you so much
mmmbaconnn (1 год назад)
That moment when you realize the guy that made the video was your old 10th grade chemistry teacher
Per Se (2 месяца назад)
comment i was looking for lol
SuperZan (1 год назад)
so far the best video on cell junctions
SUILAN WER (2 года назад)
Thanks
Nadir Idrioui (2 года назад)
thank you so much!!!
Mohamed alzahwi basheer (2 года назад)
that what I coal it great work😃
Shirsha (1 год назад)
zannatul Zan
SuperZan (1 год назад)
call*
ويليام فهد (2 года назад)
Thanks man , it was hard for me ,but now I know it!
WILL BIRD (2 года назад)
just a bit of added info: desmosomes bind intermediate to intermediate from one cell to another. and Zonula adherens actin to actin. these both make up the anchoring junction. :D
Ankit Paul (2 года назад)
+WILL BIRD just a more bit of added info : In desmosomes (macula adherens) cells connected by keratin like protein instead of actin. :D
khulgmems (2 года назад)
brief and informative, thanks!
Ana P (2 года назад)
Could you make a video going into mote depth? Like specifying the proteins and how they are laid out?
Sexy scientist (1 год назад)
+
Melly R (2 года назад)
Thanks a bunch!! :)
Hazem El Nahrawy (2 года назад)
Thank you .
Manish Sharma (2 года назад)
thank you so much! :)
SURESH RATHI (2 года назад)
nice
Nature Breeze (2 года назад)
thank u
rucelle15 (2 года назад)
thankss
RanakTv (3 года назад)
Didn't mention Hemidesmosomes or Plasmadesmota. Also I would recommend to mention and explain Anchoring Junctions and Communication Junctions.
Melbourne Meliodas (3 месяца назад)
RanakTv propably in the next video.
Kateryna Smith (3 года назад)
thanks ! good
Alexander Stefanini (3 года назад)
awesome this was exactly the information i needed. thank you so much
AdoptABlackCat (3 года назад)
Desmosomes is also known as an anchoring junction., that's what it's called in my biology book chapter 4.20
shomiy shomi (7 месяцев назад)
Desmosomes is only a one type of anchoring junction
Tamather Elmahdi (3 года назад)
Wow! So helpful :D
kashma soran (3 года назад)
thank u! it was so helpful!!!
Soft Poor Corn (4 года назад)
This was entirely taken from Examkrackers MCAT biology 8th edition, page 95.
Siddick SHEIK HOOSSAIN (3 года назад)
So ? Is it good ?
DP juic3 (4 года назад)
Good explanation, very helpful. thanks!!
Greg Mac (4 года назад)
This is a little to general
Gustavo Chavez (6 месяцев назад)
tbh I was thinking the same thing, but now that I think about it its def. better for the video to be like this because now when I read my book is 10x easier to memorize the finer things not mentioned here
Wario (6 месяцев назад)
Greg Mac too*
Yam Alsharif (4 года назад)
i know that sodium and other ions cant flow between cells in intestines cause there are epithelium tissue so ions flow across the cells. 

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