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Chemical Coordination and integration — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYChemical Coordination and integration1 Mark
Question
A patient complains of constant thirst, excessive passing of urine and low blood pressure. When the doctor checked the patients’ blood glucose and blood insulin level, the level were normal or slightly low. The doctor diagnosed the condition as diabetes insupidus. But he decided to measure one more hormone in patients blood. Which hormone does the doctor intend to measure?
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Answer

Doctor intends to measure vasopressin hormone. This hormone increases the reabsorption of water by the kidney. Deficiency of this hormone decreases the reabsorption of water and thus leads to formation of excessive dilute urine resulting in constant thirst and low blood pressure.

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