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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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nzrodrigue nzrodrigue
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11 years ago
Chloride ions, Cl-, follow actively transported Na+ ions from the nephron into the blood. would you not expect the Cl- concentration to decrease as fluids are extracted along the nephron? What causes the discrepancy?
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#1
11 years ago Edited: 11 years ago, bio_man
That as the water concentration decreases, the chlorine concentration increases because it's not diluted by the water (you know like when you're making up a standard solution, the concentration [moldm-3] depends on the amount of solute dissolved in the solvent)

Because the solution within the tubule has a lower concentration (thanks to osmosis) it causes Cl- to diffuse out of the tubule, the attraction to sodium of course helps...

That's the only thing I could think of Confounded Face
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