Question

An approximate number of mitochondria in a striated muscle cell is

• A. 2000 - 3000
• B. 30,000 - 40,000
• C. 3,00,0000
• D. 300 - 600

Answer 1

Answer: (B)

30,000 - 40,000

Mitochondria generate ATP, hence they are more numerous in cells that use large amounts of energy such as striated muscle and cells engaged in fluid and electrolyte transport. A Large number of mitochondria per cell are also found in the tissue where energy is needed such as the liver, kidney, and structures like sperm. The number of mitochondria per cell is variable. Endurance exercise-training results in an increase in the size and number of mitochondria in the skeletal muscles that are involved in the exercise. The numerical increase reach a maximum of 30,000 per cell.