Q9 of 50 Page 90

Give reasons (AS1)

Always vasopressin is not secreted.

Concentration of the urine takes place in the presence of the hormone vasopressin. If person drinks excess water the osmoregulation is maintained externally and excessive reabsorption of water from the convoluted tubules is not required thus vasopressin is not secreted.


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What is meant by osmoregulation? How is it maintained in human body? (AS1)

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Give reasons (AS1)

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Give reasons (AS1)

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