Question

which of the following is not found in prokaryotic cells?
○ cell membrane
○ cell membrane and ribosomes
○ mitochondria
○ ribosomes
○ cytoplasm

Explanation:

Prokaryotic cells have a cell membrane, cytoplasm, and ribosomes (for protein synthesis). However, they lack membrane - bound organelles. Mitochondria are membrane - bound organelles that are present in eukaryotic cells but not in prokaryotic cells. The other options (cell membrane, cell membrane and ribosomes, ribosomes, cytoplasm) are all components found in prokaryotic cells.

Answer:

C. mitochondria