The first person to see a cell was Robert Hooke, a British scientist. In 1665, Hooke used a simple microscope to observe dead cork cells. After his discovery, many centuries passed before scientists learned that cells contain organelles such as mitochondria. Each organelle plays a specific role in helping the cell function.
CELL CITY : The example compares mitochondria to a city's power plants. See if you can match each of the other organelles with a city structure that performs a similar function.
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