Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are :

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Ribosomes are non-membrane bound organelles found in all living cells, both prokaryotic and eukaryotic. Lysosomes are single membrane-bound organelles found only in eukaryotic cells. Centrosomes are non-membrane bound organelles found only in animal cells, which are eukaryotic. Mitochondria are double membrane-bound organelles found only in eukaryotic cells. Answer: Ribosomes