Topic: Membrane Excitability
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What are the only two types of cells that have excitable membrane...
neurons and muscle cells Read More »
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Which of the following is true about the movement of ions across ...
Sodium gates in the membrane can open in response to electrical potential changes. Read More »
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What is an organism that relies on photons to excite electrons wi...
this should help with the Bio take-home test...i know what you're going through. Organisms that obtain energy from light are called phototrophs, and those that obtain energy from chemicals are called chemotrophs. Organisms that need only th... Read More »
Source: http://wiki.answers.com/Q/What_is_an_organism_that_relies_on_phot...
Featured Content: Membrane Excitability
In non-excitable cells, and in excitable cells in their baseline states, the membrane potential is held at a relatively stable value, called the resting potential. More »
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Muscle cells and nerve cells (neurons)are both excita... Read More »
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Electron transport chain. Read More »
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1) Yes, K+ goes out as Na+ goes in 2) no 3) no 4) They're not passive during action potential, more active really (refer to link) 5) decrease 6) increase Here's a good animation on this stuff for finer details: http://highered.mcgraw-hill.c... Read More »
Source: http://answers.yahoo.com/question/index?qid=20111120183743AACx4hU
Your main question is basically a paraphrase of that provided in your "additional details." To put it succinctly, sodium and potassium have different electronegativities, which is what allows there to be an action potential in the first pla... Read More »
Source: http://answers.yahoo.com/question/index?qid=20100225160335AA8Ji0o
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