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Excretory Products and their Elimination — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYExcretory Products and their Elimination2 Marks
Question
Bring out the role of vasopressin (ADH) in kidney functioning.
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Answer

Vasopressin in kidney functioning:
  • Vasopressin is released from the neurohypophysis, when there is excess loss of water from the body.
  • ADH stimulates the distal convoluted tubule, collecting tubule and collecting duct to reabsorb water from the filtrate and thereby prevents loss of water in the urine.
  • ADH/ vasopressin also stimulates constriction of blood vessels and causes an increase in blood pressure; this increased blood pressure can increase the glomerular blood flow and glomerular filtration rate.

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