Some scientists think that mitochondria evolved from bacteria because they are similar in size and structure. Bacteria belong to the Prokaryote kingdom. Give two features of all prokaryotes.

Cytoplasm; cell membrane; single celled / unicellular; no (true) nucleus / no nuclear membrane; loop of DNA/ chromosome / naked DNA; no, (membrane-bound) organelles /mitochondria / chloroplasts; (peptidoglycan / murein) cell wall; AVP; e.g. plasmids