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JAMB Biology 2011 Question 13

Question 13

Transport in Animals

Which of the following is true of leucocytes?

  1. A.They are large and nucleated.
  2. B.They are involved in blood clotting.
  3. C.They are respiratory pigments.
  4. D.They are most numerous and ramify all cells.
Show the answer and explanation

Answer: A (They are large and nucleated.)

Explanation

White blood cells are larger than red cells and have a nucleus. Platelets help clotting, and red cells are the most numerous.