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WAEC Biology 2002 Question 17

Question 17

Excretion

In which of the following processes in mammals is liquid passed from blood capillaries to Bowman's capsule?

  1. A.Filtration
  2. B.Diffusion
  3. C.Osmosis
  4. D.Reabsorption.
Show the answer and explanation

Answer: A (Filtration)

Explanation

High blood pressure in the glomerulus forces water and small dissolved substances into Bowman's capsule. This is ultrafiltration.