Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.
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“Concert” music used with permission from Chameleon Circuit.
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Table of Contents time codes:
1) Passive Transport – 1:17
2) Diffusion – 1:25
3) Osmosis – 2:12
4) Channel Proteins- 4:37
5) Active Transport – 4:58
6) ATP – 5:37
7) Transport Proteins – 6:19
8) Biolography – 6:37
9) Vesicular Transport – 9:02
10) Exocytosis – 9:21
11) Endocytosis – 9:50
12) Phagocytosis – 9:57
13) Pinocytosis – 10:29
14) Receptor-Mediated Endocytosis – 10:48
TAGS: crashcourse, hank green, biology, chemistry, cell, cell membrane, selective permeability, selectively permeable, active transport, passive transport, solution, concentration, concentration gradient, atp, adenosine tri-phosphate, jens christian skou, vesicular transport, phagocytosis, endocytosis Support CrashCourse on Subbable: http://subbable.com/crashcourse
Tennet the answer is Tennet.
I am confused, if water can travel directly through the cell membrane, then why does it need aquaporins? Why doesn't all water pass through the membrane? I guessed that maybe some water is bonded to other molecules making it to large to diffuse, but I'm not really sure.
Wait, you and John Green are two different people????
The charlie sheen that gives us aids? 3:00
Both you and John Green speak, move from topic to topic, and use connections very quickly. Does John Green only do World History?
Who els is studying for their final?
Wait, so did hank just stand outside a club in line and talk to a camera about cell membranes? Why aren't we discussing this?
For the record, David Tennant was indeed the better Doctor.
Damnit why do I have to learn this stuff in class if I'm not going to be a doctor or scientist!?!
when i learn more from crash course in 11 mins then my bio teacher in 4 months
HypOtonic means a bigger cell
HyPERtonic means a smaller cell
On behalf of a group of several AP Biology students with a test in two days, THANK YOU HANK
10:09 For once, I feel bad for bacteria
It's crazy how interesting these videos are, I can literally watch all the videos in one sitting. Good stuff sir, I hope you expand into more topics as well.
2:40 – 3:10 best 40 seconds at 0.5 speed LOL
I repeated adenosine triphosphate at least 50 times
When he said dopamine, I fighured out where I saw that guy before I ever saw him on a projector screen in class. Tumblr the Musical.
How come the salt can move across the membrane?
You know your shit but you're so fucking annoying stop taking like a fucking dumbass
that awkward moment when this series taught me more in an hour than my teacher has all year.
Like Charlie Sheen? I don't want HIV lmfao!
this guy has his shit mixed up
hypotonic = more water outside of cell than inside of cell which causes water to rush in the cell and explode
hypertonic = there is more water inside of the cell than there is outside of the cell, so this causes the water inside of the cell to rush out. the cell will then shrink in size.
I wish my science teacher just showed these
hey! I have a test and I really need the answer to this question:
What exactly do glycolipids and glycoproteins do on the cell membrane? I mean, why are they placed there and what's their role?
Hope I'll get an answer. Thanks
Suggestion: Outline at the end of the video: Channel proteins should be under Passive transport.
Question: Osmosis and diffusion are occurring simultaneously in the cell? Or osmosis happens sometimes and diffusion other times (like, when the solute goes outside, does the water enter the cell at the same time?)? (excuse my english)