Which of the following describes an organelle that both prokaryotic and eukaryotic cells have in common? . -this organelle contains the cell's dna and is where dna replication occurs.. -this organelle is composed of a stack of membrane sacs where proteins are modified and stored.. -this organelle extracts energy stored in glucose molecules to power cell functions.. -this organelle is composed of protein and rna and is used to make proteins for the cell.