According to the endosymbiotic theory, some organelles are believed to have evolved through a symbiotic relationship between eukaryotic and prokaryotic cells. describe three observations that support the endosymbiotic theory.

The Mitochondria in many cells, are believed to have been bacteria that have been incorporated in the cytophysiology. Mitochondria first off, contain their own DNA, er, RNA. Additionally physiologically the mitochondrion, has an inner membrane and some organelle traits similar to prokaryotic cells. Lastly Mitochondria are the only organelle capable of replicating itself.

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luisvaschetto luisvaschetto · Answer 2 · 2021-11-03T16:37:28+01:00

According to the endosymbiotic theory, mitochondria and chloroplasts are organelles that evolved through a symbiotic relationship between eukaryotic and prokaryotic cells.

The endosymbiotic theory proposes that mitochondria and chloroplasts were once aerobic bacteria, which were ingested by anaerobic bacteria and these types of cells then started a symbiotic relationship.

The lines of evidence that support the endosymbiotic theory include:

Both mitochondria and chloroplasts have bacteria-like ribosomes.

Both mitochondria and chloroplasts have their own genetic material (DNA) organized in a circular molecule.

Both mitochondria and chloroplasts divide by binary fission (like bacteria).

Both mitochondria and chloroplasts have a similar size as prokaryotic (bacteria) cells.

In conclusion, according to the endosymbiotic theory, mitochondria and chloroplasts are organelles that evolved through a symbiotic relationship between eukaryotic and prokaryotic cells.

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