Which cell type is characterized as prokaryotic?

The cell type characterized as prokaryotic is bacteria. Prokaryotic cells are simpler and smaller compared to eukaryotic cells, lacking a defined nucleus and membrane-bound organelles. Bacteria fall into this category, which means their genetic material is not enclosed within a nucleus but rather exists in a nucleoid region of the cell. This fundamental structural distinction is a hallmark of prokaryotic organisms.

In contrast, the other options represent eukaryotic cells. Fungi and yeast are both members of the fungi kingdom and have complex cellular structures, including a nucleus and various organelles. Plant cells also belong to the eukaryotic category, featuring a well-defined nucleus, cell wall, and plastids. Understanding these differences is crucial in the study of microbiology and cellular biology.