Examination of a sample of cells reveals large numbers of mitochondria compared to most other cells. Which of the following is a likely reason for this?
A) The cells produce digestive enzymes.
B) The cells produce steroid hormones.
C) The cells have very high energy requirements.
D) The cells synthesize transport proteins.
E) The cells make antibodies.

Question

Quizplus · Accepted Answer

Mitochondria are responsible for producing ATP, the energy currency of cells. If a cell has high energy requirements, it will have many mitochondria to meet its energy demands. This is seen in cells with high metabolic activity, such as muscle cells and some nerve cells.

Examination of a Sample of Cells Reveals Large Numbers of Mitochondria