Prokaryotes: Smaller (less than 2 micrometers in diameters). Eukaryotes: Larger Cells (10-100 micrometers).
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Difference: DNA
Prokaryotes: DNA is circular. Eukaryotes: DNA is linear.
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Difference: Nucleus
Prokaryotes:No Nucleus - DNA is free in cytoplasm. Eukaryotes: Nucleus present - DNA is inside nucleus.
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Difference: Cell Wall
Prokaryotes: Made of polysaccharide, but not cellulose or chitin. Eukaryotes: No cell wall in animal cells. Cellulose cell wall in plants. Chitin cell wall in fungi.
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Difference: Amount of Organelles
Prokaryotes: Few organelles and no membrane bound organelles, e.g no mitochondria. Eukaryotes: Many organelles - mitochondria and other membrane-bound organelles present.
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Difference: Movement
Prokaryotes: Flagella (when present) made of protein flagellin, arranged in a helix. Eukaryotes: Undulipodium made of microtubules arranged in a "9+2" formation.
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Difference: Size of Ribosomes
Prokaryotes: Small ribosomes (less than 20 nanometers). Eukaryotes: Larger ribosomes (over 20 nanometers).
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