What are the two main types of cells?

The two main types of cells are prokaryotic and eukaryotic. Prokaryotic cells are simpler and smaller, lacking a nucleus and membrane-bound organelles. They include bacteria and archaea. In contrast, eukaryotic cells are more complex, containing a nucleus that houses their DNA, as well as other organelles like mitochondria and endoplasmic reticulum. These cells include those from plants, animals, fungi, and protists. Understanding the distinction between these two cell types is fundamental in biology, as it forms the basis for organizing life into various categories and studying their functions and characteristics.