According to reaserch ,
The presence of cellular structures in eukaryotic cells are similar to prokaryotes. Mitochondria and chloroplasts are thought to have once been prokaryotic cells that were incorporated into larger prokaryotic cells. There are a number of biochemical similarities between the eukaryotic organelles and prokaryotic cells. Eukaryotic organelles are still the same size as the prokaryotic cells from which they are believed to have been derived.