In Da Club - Membranes & Transport: Crash Course Biology #5

Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane. Crash Course Biology is now available on DVD! http://dftba.com/product/1a...

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Oh, hey!I didn't see you up there.How long have you been waiting in this line?I've been here for like 15 minutes and it's freaking freezing out hereI mean, whose banana do you gotta peel in order to get into this club?Well, while we're here I guess this might not be a bad time to continue our discussionabout cells. Because cells, like nightclubs, have to be selectively permeable.They can only work if they let in the stuff that they need and they kick out the stuffthat they don't needlike trash and ridiculously drunk peopleand Justin Bieber fans.No matter what stuff it is it has to pass through the cell's membrane.Some things can pass really easily into cells without a lot of help, like water or oxygen.But a lot of o...