Help on countercurrent systems in fish!

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gabbym
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Help on countercurrent systems in fish!

Post by gabbym » Mon Nov 12, 2007 4:19 pm

In a countercurrent flow system, what happens to oxygen diffusion when there is no concentration gradient?

All i know is that the answer is has to be different than the one about a concurrent flow (which is that diffusion can not occur).
So im guessing that diffusion does still occur?

wow im lost. please someone help me!

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AstusAleator
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Post by AstusAleator » Tue Nov 13, 2007 4:33 am

If there is no concentration gradient then there is no diffusion. period.
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mith
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Post by mith » Tue Nov 13, 2007 5:39 pm

The currents system simply makes it more oxygenated compared to other systems, but if there is no gradient no system will have any effect.
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Darby
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Post by Darby » Thu Nov 15, 2007 2:49 am

The point of a countercurrent system is to maximize the gradient along the blood flow, so the two parts of the question don't really go together.

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