CBSENEETClass 9
How is a prokaryotic cell different from a eukaryotic cell?
Answer
A prokaryotic cell lacks a true nucleus and membrane-bound organelles, while a eukaryotic cell has a well-defined nucleus and such organelles.
The working
Nucleus
Prokaryotic cells have no nuclear membrane, so the DNA lies free as a nucleoid, whereas eukaryotic cells have a true membrane-bound nucleus.
Organelles
Prokaryotic cells lack membrane-bound organelles, while eukaryotic cells contain mitochondria, plastids and other organelles.
Size
Prokaryotic cells are generally smaller (1 to 10 micrometres) than eukaryotic cells (5 to 100 micrometres).
Examples
Bacteria are prokaryotic, while plant, animal and fungal cells are eukaryotic.
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