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Ion channels

(noun) Plural form of ion channel.

See ion channel for definition and additional information.

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[NEUROSCIENCE]-Two Questions about AP Propagation

... the membrane potential AT WHICH sufficient number of Na+-voltage gated channels OPEN such that the membrane permability of sodium is greater than ... the threshold in the first place? Attempt: a stimulus causes the activation of special ion channels (not the voltage-gated ones) that cause ions ...

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by AbducensNucleus
Sun Aug 05, 2012 4:19 am
Forum: Human Biology
Topic: [NEUROSCIENCE]-Two Questions about AP Propagation
Replies: 5
Views: 5097

Re: Evolution: evidence of change

... my advice would be: ⋅ Take another look at your definitions for adaptation and fitness . You're on the right track, but I would ... trees, and many biochemical structures, like flagella and ion channels, are remarkably similar in different organisms. Of course, my favorite ...

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by Luxorien
Sat Mar 03, 2012 7:56 pm
Forum: Evolution
Topic: Evolution: evidence of change
Replies: 2
Views: 3341

Do we know all the proteins (and their primary structure!)?

... we know the structure of every human protein, but as far as conformation and function of each one, as well as variability, we cannot be sure. ... this requires a high concentration of that particular protein (so ion channels in the electric organ of the torpedo fish for example) and some ...

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by Babybel56
Thu Apr 28, 2011 11:13 am
Forum: Cell Biology
Topic: Do we know all the proteins (and their primary structure!)?
Replies: 5
Views: 3128

neuro questions!

... clamp electrophysiology can be used to record: a) the activity of the ion channels that are present in the patch of membrane b) the activity of multiple neurons at a ...

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by yj90
Wed Jan 19, 2011 4:37 am
Forum: Physiology
Topic: neuro questions!
Replies: 2
Views: 3949

Pls. I need help with my hw

... active transport using a antiport The rate of facilitated diffusion of glucose through GLUT4 transported on skeletal muscle occurs fast EXCEPT? ... C) By Na+ Ca+ antiports D) By simple diffusion through Calcium ion channels when their gates open Which of the following is TRUE about active ...

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by mslazy
Sat Oct 09, 2010 8:56 pm
Forum: Physiology
Topic: Pls. I need help with my hw
Replies: 1
Views: 11226
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