Which of the following is an example of a prokaryotic cell?

A bacterial cell is an example of a prokaryotic cell because prokaryotes are characterized by their lack of a nucleus and membrane-bound organelles. Instead, their genetic material is located in a region called the nucleoid. Bacteria, as prokaryotes, are single-celled organisms that can have various shapes and metabolic strategies, but they all share these fundamental structural features.

In contrast, animal cells, yeast cells (which are eukaryotic fungi), and plant cells are all types of eukaryotic cells. Eukaryotic cells have a defined nucleus that houses their DNA, as well as various organelles like mitochondria and chloroplasts (in the case of plant cells). This distinction in cellular organization is a key feature that differentiates prokaryotic cells from eukaryotic cells.