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Prokaryotic and eukaryotic organisms

There are two types of cells: prokaryotic and eukaryotic. The main difference is that eukaryotic cells have a nucleus.

Characteristics Eukaryotic cells Prokaryotic cells
Nucleus Present Absent
Organelles Present Absent
Structure of DNA Linear Circular
Cell size $${10-100\mu m}$$ $${0.2-2\mu m}$$
Organisms containing these cells Eukaryote Prokaryote
Examples Plant and animal cells Bacteria, archaea

All cells have genetic material, a membrane and a cytoskeleton. Cells in the same organism contain identical genetic material.