Prokaryotes

Eukaryotes

Size

Usually only a few microns

Usually greater than 10 microns

True nucleus and chromosomes

No

Yes

Organelles

No

Yes

Filamentous cytoskeleton

No

Yes

Exo/Endocytosis

No

Yes

Cell division

Fission

Mitosis and meiosis

mRNA processing

Little

Extensive

Ribosomes

70S

80S in cytoplasm, 70S
in mitochondria and chloroplasts