a) DNA
Prokaryotic cell
Eukaryotic cell
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DNA coiled with proteins Located in cytoplasm, the nucleus(the nuclear envelope) Four or more chromosomes are present Always present
b) Mitochondria
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Naked DNA (a naked loop), single copy genes that are transcribed and translated without modification. Located in cytoplasm, the nucleoid Not present
c) Ribosomes
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Present Smaller sized 70 S
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Present Larger sized 80 S
d) Internal cell organization
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No organelles
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Organelles
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The prokaryotic cells are smaller (0.1-10 µm) than the eukaryotic cells (10-100 µm). Some similarities are that they are both filled with cytoplasm, ribosome and they have the same kinds of DNA; the genetic code is the same in both.