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> Concentration gradient force Vs. electrical gradient force
ndy890
post Aug 01, 2017, 10:09 PM
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Hi Everyone,

I was just learning about action potential generation via electrochemical gradients. I was just wondering, does anyone know whether a +1 unit of concentration gradient is stronger/weaker than a +1 unit of electrical gradient?

For example: If side-A of a split chamber had a net charge of +1, while side-B had a balanced net charge of 0. But side-B had one extra K+ ion than side-A. If the membrane was only permeable to K+ ions, the concentration gradient of side B would cause a force on the K+ ions (on side-B ) to go to side-A, but the electrical gradient on side-A would cause a force on K+ ions (on side-A) to go to side-B. Which force is stronger?

What term would I have to google to learn more about the forces generated by each gradient and each marginal unit of increase/decrease of concentration/charge? - This is all very interesting to me! smile.gif

Nate
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haohao
post Aug 02, 2017, 08:45 PM
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I'm not a Professor, and hope I could provide some suggestive opinions.

1. Hello,ndy890. Welcome to this forum for learning and studying. The so-called "concentration gradient" is actually the obvious electrical gradient or electrical force ration, which mostly reacts in the chemical surroundings, namely one kind of electrical force ration.

2. The electrical force ration referred herein is related not only not the matter in the term of physicals, but also with a connection of the spectrum of the object in the physical world.

3. "Experience is one way to show your interest and span for the research, which has no direct links with the innovation and best practices. In my opinion, the continuing ability-based performance with interest is the key and the related recognition is important. I thought the essence of the education was the life-long learning and improvements, in which the so-called formal and regular education should be changed into the intensive and flexible learning aiming for the ability-based performances. To be a real intelligence neuroscientist or cognitive neuroscientist, you might need specialized ability-based performance and fund-included web-platform instead of a doctoral degree or post-doctoral medical background, or some professional training certificates or qualifications. "Learning and improving oneself is a life-long course. To be earnest, degrees and diplomas or occupational certificates or qualifications, even the web courses are totally not necessary to the research, even in the future. Internet, specialized e-contents and the interest for the research, including the practicing and webforum, is necessary." from one poster in this forum.
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