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WAEC Biology 2009 Question 8

Question 8

Cell and Its Environment

Red blood cells were found to have burst open after being placed in distilled water for an hour. This phenomenon is known as

  1. A.plasmolysis.
  2. B.diffusion.
  3. C.haemolysis.
  4. D.wilting.
Show the answer and explanation

Answer: C (haemolysis.)

Explanation

Water enters red cells by osmosis until they burst; the bursting of red blood cells is called haemolysis.