If the cell were a city, the mitochondria would be the power plant. Mitochondria are the organelles where most steps of cellular respiration take place. Each mitochondrion has an inner and outer membrane. Mitochondria are independent organelles. They can replicate on their own and make their own proteins. They also have their own DNA and ribosomes. Their DNA is circular, similar to bacteria. How does the author of this passage show the role of mitochondria in a cell?

by using statistics about how much energy is generated in mitochondria

by comparing mitochondria in a cell to a power plant in a city

by telling a brief story about a disease that impacts the mitochondria

by explaining how mitochondria are like bacteria