The process of endosymbiosis may have resulted in eukaryotic cells by bacteria engulfing aerobic bacteria with enzymes that processed oxygen for energy transformations.

Question

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The theory of endosymbiosis suggests that eukaryotic cells evolved from the engulfment of one bacterium by another. One of these bacteria may have been an aerobic bacterium that provided a host cell with energy in the form of ATP. Over time, the host cell and aerobic bacterium formed a symbiotic relationship, with the aerobic bacterium eventually becoming an organelle within the host cell, known as a mitochondrion. Therefore, it is true that the process of endosymbiosis may have resulted in eukaryotic cells by bacteria engulfing aerobic bacteria with enzymes that processed oxygen for energy transformations.

The Process of Endosymbiosis May Have Resulted in Eukaryotic Cells