Question 4
Cell Structure and OrganisationWhich of the following cell types has the least number of mitochondria?
- A.Cardiac cells of the heart
- B.Cells of the cornified layer
- C.Muscle cells of the bladder
- D.Muscle cells of the diaphragm
Show the answer and explanation
Answer: B (Cells of the cornified layer)
Explanation
Cells of the cornified layer of the skin are dead and keratinised, so they have almost no mitochondria; muscle cells need many for energy.