Practice!

Sample Problem

What do prokaryotic and eukaryotic cells both have in common?

Solution

(D) is the correct answer. Eukaryotic and prokaryotic cells both have cell membranes, ribosomes, and genetic material. Only eukaryotic cells have membrane-bound organelles and a nucleus (A, B, C). And whereas prokaryotic cells all have cell walls, not all eukaryotic cells do (B).