Fill in the blanks:
_____________ acts similar to mitochondria of eukaryotic cell in bacteria.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a term that acts similarly to mitochondria in eukaryotic cells but is found in bacteria. Mitochondria are known as the powerhouse of the cell, where ATP (energy) is produced.

2. **Identifying the Bacterial Equivalent**: In bacteria, there is a structure that performs functions similar to mitochondria. This structure is involved in energy production and other cellular processes.

3. **Recalling the Structure**: The structure in bacteria that is analogous to mitochondria is called "mesosomes." Mesosomes are invaginations (folds) of the plasma membrane in bacterial cells.

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