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NEET 2015
Exam
NEET
Year
2015
Subject
Zoology
Chapter
Excretory Products and their Elimination

NEET 2015 · Zoology · Excretory Products and their Elimination

Human urine is usually acidic because

Human urine is usually acidic because

Options

  1. AExcreted plasma proteins are acidic
  2. BPotassium and sodium exchange generates acidity
  3. CHydrogen ions are actively secreted into the filtrate
  4. DThe sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries.

Correct answer

C. Hydrogen ions are actively secreted into the filtrate

Step-by-step solution

Tubular secretion maintains the pH and ionic balance of body fluids in which hydrogen ions are actively secreted into the filtrate and bicarbonate ions are reabsorbed. The presence of these H+ ions makes the urine acidic in nature.
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