What do you know about cells?

A cell is the smallest structure and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

All cells have...

• DNA
• Membrane
• Cytoplasms
• Ribosomes

A prokaryote is a group of organisms that lack a cell nucleus, or any other membrane-bound organism.

A eukaryote is an organism whose cells contain complex structures enclosed within membranes.

Both prokaryotes and eukaryotes have...

• DNA
• Plasma membrane
• Cytoplasm
• Ribosomes

The defining membrane-bound structure that makes the cells different is that the prokaryote has a nucleus, and the eukaryote does not.