AP BIOLOGY

Detailed explanation-1: -Eukaryotic cells also contain a variety of structures and organelles not present in prokaryotic cells. Throughout the course of evolution, organelles such as mitochondria and chloroplasts (a form of plastid) may have arisen from engulfed prokaryotes.

Detailed explanation-2: -Mitochondria are only found in eukaryotic cells. This is also true of other membrane-bound structures like the nucleus and the Golgi apparatus (more on these later).

Detailed explanation-3: -The primary difference between prokaryotic and eukaryotic cells is that a nucleus and other membrane-bound organelles are only present in eukaryotic cells.

Detailed explanation-4: -While eukaryotic and prokaryotic cells both contain cytoplasm and a membrane that encloses the contents of the cell, only eukaryotes possess a membrane-bound nucleus. Prokaryotes, by contrast, have cells without a nucleus. Instead, prokaryotic cells possess a nucleoid region, which is not bound by a membrane.