Class 11 · Excretory Products and Their Elimination

DCT Functions and Selective Reabsorption — NEET Biology

🔥 Predicted for NEET 2027
📖 NCERT Source

Distal Convoluted Tubule (DCT): Conditional reabsorption of Na+ and water takes place in this segment. DCT is also capable of reabsorption of HCO3- and selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in blood.

NCERT Biology · Class 11 · Chapter 16 · Paragraph 27
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

Practice This Concept
QuestionPredicted for NEET 2027

The part of nephron that plays a significant role in the maintenance of Na⁺-K⁺ balance under hormonal control is:

📖 Solution & NCERT Explanation
View solution & NCERT explanation

Correct answer: A DCT

DCT’s permeability is under hormonal influence.

❓ Frequently Asked Questions
What does NCERT say about Distal Convoluted Tubule DCT?
Distal Convoluted Tubule (DCT): Conditional reabsorption of Na+ and water takes place in this segment. DCT is also capable of reabsorption of HCO3- and selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in blood.
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.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
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