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Aquaporin

Aquaporin

(Science: protein) plant cell wall polysaccharides containing predominantly arabinose and galactose.

two main types are recognised: arabinogalactan 1, found in the pectin portion of angiosperms and containing _(1-4) linked galactan and _ arabinose side chains, arabinogalactan II, a highly branched polymer containing _(1-3) and _ (1-6) linked galactose and peripheral _ arabinose residues. Arabinogalactan II is found in large amounts on some gymnosperms, especially larches and is related to AGP.


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Re: Specific Osmosis Question

... (higher concentration), to inside the cell (lower concentration). Secondly, water passively moves through a membrane channel protein now called an aquaporin , which is why water can cross a membrane more quickly than expected. This is a newer finding, but allow me to elaborate. The plasma membrane ...

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by chrisPbacon
Fri Sep 30, 2011 10:36 pm
 
Forum: Cell Biology
Topic: Specific Osmosis Question
Replies: 1
Views: 6369

Re: A Calculus-Based Viewpoint for Negative Feedback

... .. the rate of change being an important determinant fits a mathematical model that, unfortunately, does not reveal what is going on .. ADH causes aquaporin 2 proteins to be inserted into the distal nephron (DCT) .. these aquaporins selectively allow water to be resorbed into the body to increase ...

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by majik1213
Sun Apr 12, 2009 3:39 am
 
Forum: Cell Biology
Topic: A Calculus-Based Viewpoint for Negative Feedback
Replies: 3
Views: 5534

Antidiuretic Hormone (ADH)

Aquaporin is a water channel protein (transmembranar proteins that allow facilitated diffusion of water)

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by dark_angel
Wed Jun 20, 2007 12:09 pm
 
Forum: General Discussion
Topic: Antidiuretic Hormone (ADH)
Replies: 4
Views: 2934

Antidiuretic Hormone (ADH)

aquaporin? Can u explain it in details?

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by biocupid
Wed Jun 20, 2007 12:05 pm
 
Forum: General Discussion
Topic: Antidiuretic Hormone (ADH)
Replies: 4
Views: 2934


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