What is the importance of tubular secretion in urine formation?

What is the importance of tubular secretion in urine formation?
  1. to maintain the volume of filtrate
  2. to maintain the ionic and acid base balance of body fluids
  3. to remove excess water
  4. to remove waste products

Solution

During urine formation, the tubular cells secrete substances like H⁺, K⁺ and ammonia into the filtrate. Tubular secretion is also an important step in urine formation as it helps in the maintenance of ionic and acid base balance of body fluids.

Asked in: NCERT

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