Endosymbiotic Theory

5. Antibiotic Sensitivity

Some antibiotics that affect bacteria also inhibit the function of mitochondria and chloroplasts but not nuclear transcription or translation.

1. Size and Morphology

Chloroplasts and Mitochondria are roughly the same size and shape as prokaryotic cells.

2. Replication

Chloroplasts and Mitochondria divide by binary fission, the way prokaryotes do.

3. DNA

Chloroplasts and Mitochondria have their own DNA and their genome is circular like prokaryotes.

Endosymbiotic Theory

Evolutionary theory which explains the origin of eukaryotes from ancestral prokaryotes. Proposes that some organelles (Mitochondria and Chloroplasts), evolved from free-living prokaryotes that were engulfed and subsequently became obligate endosymbionants.

4. Membranes

Two membranes around Chloroplasts and Mitochondria and these are different in composition.