Question

Which is not an example of eukaryotic cells?

• A. Euglena viridis
• B. Paramecium caudatum
• C. Amoeba proteus
• D. Escherichia coli

Answer 1

The correct option is D Escherichia coli

Amoeba proteus, Paramecium caudatum, Euglena viridis are unicellular eukaryotic organisms and belongs to the kingdom Protista. Escherichia coli is a prokaryotic organism and belongs to the kingdom of Monera. It does not have nucleus or other membrane-bound cell organelles like chloroplast and mitochondria. Also, ribosomes of prokaryotes like Escherichia (70S type) are different from ribosomes of eukaryotes.

So, the correct answer is option D.