Biology 9700 · AS & A Level · Cells as the basic units of living organisms

Cells as the basic units of living organisms — practice question

Mitochondria are believed to have arisen from prokaryotic cells that were taken into an ancestral cell. Which feature did these prokaryotes lose as they evolved into mitochondria?

Acell wall
Bcircular chromosome
Cinternal membranes
Dribosomes

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