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Excretory Products and Their Elimination

Urine Formation in the Nephron Practice Questions

20 free Urine Formation in the Nephron practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Urine Formation in the Nephron questions

20 questions
  1. Q1. Which of the following is the first step in urine formation?
  2. Q2. The glomerular filtration rate (GFR) in a healthy individual is approximately:
  3. Q3. Glomerular filtration is considered a process of 'ultrafiltration' because:
  4. Q4. Which specialized cells of Bowman's capsule are arranged in an intricate manner to leave some minute spaces called filtration slits?
  5. Q5. The GFR is regulated by a built-in mechanism involving the Juxtaglomerular Apparatus (JGA). JGA is formed by cellular modifications in which two structures?
  6. Q6. What percentage of the filtrate is reabsorbed by the renal tubules in a healthy human?
  7. Q7. Which of the following substances are reabsorbed from the filtrate by active transport?
  8. Q8. In which part of the nephron does maximum reabsorption (70-80%) of electrolytes and water occur?
  9. Q9. Tubular secretion helps in the maintenance of ionic and acid-base balance of body fluids by secreting which ions into the filtrate?
  10. Q10. Which segment of the nephron is specialized for the 'minimum' reabsorption and plays a significant role in maintaining high osmolarity of medullary interstitia…
  11. Q11. The descending limb of the loop of Henle is:
  12. Q12. In the ascending limb of the loop of Henle, the filtrate becomes progressively:
  13. Q13. Conditional reabsorption of Na+ and water takes place in which part of the nephron?
  14. Q14. Which of the following is NOT secreted into the filtrate in the PCT?
  15. Q15. Large amounts of water could be reabsorbed from this region to produce concentrated urine:
  16. Q16. Reabsorption of water in the renal tubules occurs via:
  17. Q17. The net filtration pressure (NFP) that causes ultrafiltration in the glomerulus is primarily determined by:
  18. Q18. Small amounts of urea are allowed to enter the thin segment of the ascending limb of Henle's loop to:
  19. Q19. If the brush border of the PCT is removed, what will be the effect on urine formation?
  20. Q20. Which part of the nephron allows for the selective secretion of hydrogen and potassium ions and NH3 to maintain pH and sodium-potassium balance in blood?