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CBSE Class 10 Answered

how is permeability of distal convoluted tubule and the collecting tube controlled to
Asked by ankitmadan | 05 Jun, 2008, 07:29: PM
Expert Answer

In distal convoluted tubule,  Na+ are reabsorbed actively and Cl- are reabsorbed passively into the blood. Absorption of water is controlled by ADH, which increases permeability of DCT to water. Absorption of Na+ is controlled by aldosterone hormone.

Large amounts of water can be reabsorbed from collecting duct. So it should be permeable to water.

 

Answered by | 06 Jun, 2008, 08:18: PM
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