Question

osmosis occurs through water channel proteins called what?

Answer 1

Hello, @circles ! Welcome to OpenStudy! :D Be sure to review the OS Code of Conduct and Terms and Conditions every once in a while to be sure you've got the hang of the site and our rules!

I can help you with your question. Do you have a guess, or are you completely lost?

Answer 2

im completely lost

Answer 3

That's perfectly fine. Do you have some answer choices? If so, I can give you a trick that I sometimes use when I'm stuck on questions like this. If not, I'll help you another way. :)

Answer 4

no i dont have answer choices

Answer 5

Okay! Do you remember learning about the cell membrane?

Answer 6

And do you remember learning about how the cell membrane absorbs materials?

Answer 7

no

Answer 8

Then that's where we'll start. :) Basically, the cell membrane is a thin outer layer of the cell. It protects the cell from absorbing materials it doesn't need (or that are poisonous to it), while also making sure it lets in the materials it DOES need (this is called semi-permeable). This process, I'm sure, you're going to hear more about in class or in your text, so I won't write an essay here, haha. :) All you really need to know for this question is that the cell membrane accomplishes this task by using a system of cellular 'pores.' Does this make sense so far? If so, I can cover osmosis and then help you get your answer.

Answer 9

And this is why biochemistry become so damn easy:
You take @tafkas77 's long talk, find the find word pores convert it into a protein name such as porin... take the Latin word for water and we are there.

Answer 10

Exactly what I was getting at, @Frostbite !

Answer 11

However well written @tafkas77

Answer 12

Heehee, thank you. :>

Answer 13

What does not make since is the following which I consider an important general knowledge about [insertname] (I don't want to say it):
Every [insertname] need some kind of mechanism in order to ensure their specificity.
AQP1 for example use a very narrow pore assisted by a histidine limiting the transport for water only. In addition to that an arginine is assisting thereby repelling the movement of cations that include \(\large \sf H_{3}O^{+}\).
Usually two short helices are oriented so their positively charged dipoles point towards the pore in a such way that water is reoriented as it pass through. This prevent hydrogen bound chains and prevent protons to passage by what is known as "proton hopping" (look up Grotthuss mechanism on google)

Answer 14

Or it does make sense, just gotta know some theory to figure it out.

Answer 15

Yes, that does make sense, although it may be a little too advanced for the topic at this point. Since the user doesn't understand about cell membranes, it may be too early to launch the Grotthuss mechanism on them! :) But yeah, I see where you're going. Too bad we can't give more than one medal. :)

Answer 16

Maaaaaybe just a tiny bit. Although I'm not an expect in lipid soluble proteins. They are so tricky to isolate.

Answer 17

Tell me about it.