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Do protozoa have mitochondria?

Published in Protozoan Cell Biology 1 min read

Yes, almost all protozoa have mitochondria. These organelles are essential for energy production within the cell.

Mitochondria in Protozoa: A Closer Look

Protozoa, being eukaryotic organisms, generally possess mitochondria. These organelles are characterized by a double membrane structure that plays a crucial role in their function.

  • Double Membrane Structure: Mitochondria in protozoa, like those in other eukaryotes, have a double membrane:
    • Outer Membrane: Forms the boundary of the organelle.
    • Inner Membrane: Features extensions called cristae, which can be flattened, tubular, or discoidal. These cristae increase the surface area available for the respiratory machinery.

According to the provided reference, almost all protozoans contain double-membrane mitochondria. This means that the presence of mitochondria is a common characteristic among protozoa. The inner membrane forms cristae, which can take different shapes (flattened, tubular, or discoidal), increasing the surface area for respiration.

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