Function of the tubules — NEET Biology Questions

Practice 30 questions on Function of the tubules from Excretory products and their elimination (NCERT Class 11, Chapter 16). Free samples below — get all 30 in the app.

30 Questions Excretory products and their elimination Class 11

Sample Questions — Function of the tubules

Try 5 questions below from Function of the tubules. Get all 30 in the MedicNEET app.

MCQ
Which hormone controls water reabsorption in the collecting duct?
  • A. Renin
  • B. Aldosterone
  • C. ADH
  • D. Angiotensin
✅ Correct Answer: C
ADH makes the collecting duct more permeable to water.
MCQ
Which segment of the nephron helps maintain blood pH by secreting H⁺ ions and ammonia?
  • A. Loop of Henle
  • B. Collecting duct
  • C. PCT
  • D. DCT
✅ Correct Answer: D
DCT helps in maintaining the pH and sodium-potassium balance in blood.
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MCQ
Which part of the nephron allows conditional reabsorption under hormonal control?
  • A. PCT
  • B. DCT
  • C. Henle’s loop
  • D. Bowman’s capsule
✅ Correct Answer: B
It responds to aldosterone and other signals.
MCQ
9. Which nephron part does NOT contribute to water reabsorption?
  • A. Ascending limb of Henle's loop
  • B. Descending limb of Henle's loop
  • C. Collecting duct
  • D. DCT
✅ Correct Answer: A
It is impermeable to water.
MCQ
10. Why is ascending limb’s impermeability to water vital for urine concentration?
  • A. It allows urea backflow
  • B. It helps retain water directly
  • C. It enables solute accumulation in medulla
  • D. It reabsorbs glucose
✅ Correct Answer: C
Solutes like Na+ are actively reabsorbed here to create a gradient.

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