Collecting Duct: This long duct extends from the cortex of the kidney to the inner parts of the medulla. Large amounts of water could be reabsorbed from this region to produce a concentrated urine. This segment allows passage of small amounts of urea into the medullary interstitium to keep up the osmolarity. It also plays a role in the maintenance of pH and ionic balance of blood by the selective secretion of H+ and K+ ions.
Adjacent to a frequently-asked paragraph in the same chapter.
Practice This Concept
QuestionPredicted for NEET 2027
Which hormone controls water reabsorption in the collecting duct?
📖 Solution & NCERT Explanation
View solution & NCERT explanation
Correct answer: C — ADH
ADH makes the collecting duct more permeable to water.
❓ Frequently Asked Questions
What does NCERT say about Collecting Duct This long?
Collecting Duct: This long duct extends from the cortex of the kidney to the inner parts of the medulla. Large amounts of water could be reabsorbed from this region to produce a concentrated urine.
Has this concept appeared in NEET?
High probability for NEET 2027. Adjacent to a frequently-asked paragraph in the same chapter.
Which chapter is this from?
Excretory Products and Their Elimination, Class 11 NCERT Biology.
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