WAEC Biology 2009 Objective — Question 4
Question 4 of 60 from the West African Examinations Council (WAEC) Biology 2009 Objective paper, with the correct answer and a full explanation.
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Which of the following cell types has the least number of mitochondria?
- A. A. Cardiac cells of the heart
- B. B. Cells of the cornified layerCorrect
- C. C. Muscle cells of the bladder
- D. D. Muscle cells of the diaphragm
Explanation
The more active a cell is, the higher the number of mitochondria it is expected to have. Cells of the cornified (dead, keratinised) layer are metabolically inactive and so have the fewest mitochondria.
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