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JAMB Biology 2010 Question 2

Question 2

Cell Structure and Organisation

Which of the following characterizes a mature plant cell?

  1. A.The nucleus is pushed to the centre of the cell.
  2. B.The cell wall is made up of cellulose.
  3. C.The nucleus is small and irregular in shape.
  4. D.The cytoplasm fills up the entire cell space.
Show the answer and explanation

Answer: B (The cell wall is made up of cellulose.)

Explanation

A mature plant cell has a cellulose cell wall and a large central vacuole. The vacuole pushes the cytoplasm and nucleus to the side, so the cytoplasm does not fill the cell.