Bacterial cells, which are prokaryotic, typically contain structures such as a cell membrane, cell wall, ribosomes, and genetic material in the form of a circular DNA molecule. They lack membrane-bound organelles. In contrast, plant cells (eukaryotic) have a cell wall, chloroplasts for photosynthesis, and large central vacuoles, while animal cells have a flexible cell membrane, various organelles like mitochondria and lysosomes, but lack cell walls and chloroplasts.
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