Railway Recruitment Board General Awareness — Question 1631

Question

Which of the following is NOT a function of the human kidney?

  1. Filtration of blood
  2. Regulation of water balance
  3. Production of antibodies
  4. Excretion of urea

Correct answer

C — Production of antibodies

Explanation (English)

Antibodies are produced by plasma (immune) cells, not the kidney; the kidney filters blood and excretes waste.

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