Osmoregulation involves ADH binding to DCT/CD receptors, activating phosphorylase to insert aquaporins, increasing membrane water permeability and reabsorption, leading to concentrated urine.
This card describes osmoregulation via ADH: ADH binds to DCT/CD receptors, activating phosphorylase, which inserts aquaporins into the membrane, increasing water permeability and reabsorption, resulting in concentrated urine.
| Front | What is the process of Osmoregulation |
|---|---|
| Back | Cells in walls of DCT and CD have membrane bound receptors for ADH When ADH binds to these receptors phosphorylase is activated Vesicles containing water permeable channels (Aquaporrins) are inserted into the cell surface membrane Membrane becomes more permeable to water More water is reabsorbed and urine becomes more concentrated with a lower water potential |
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