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| Examples of eukaryotes |
The discovery that there are two
main types of living cells (prokaryotes and eukaryotes) gave rise to a
revolution in the way of classifying living things. Although (as usual)
biologists do not agree on a single classification, the following one seems
very reasonable:
1. Empire prokaryote (bacteria). DNA free in the protoplasm.
a. Kingdom eubacteria (true bacteria). They use acyl ester lipids.
b. Kingdom archaea. They use isoprenoidal-ether lipids. They include
sulphobacteria, methanobacteria and halobacteria.
2. Empire eukaryote (cells with nuclei). DNA inside the nucleus. They have a cytoskeleton.
c. Kingdom archaezoa (primitive eukaryotes). They have no organelles.
d. Kingdom protozoa (advanced unicellular eukaryotes) with symbiotic
organelles.
e. Kingdom Fungi.
f. Kingdom metaphyta (plants).
g. Kingdom of metazoa (animals).
