Mitochondria were incorporated into eukaryotes after chloroplasts.

Question

​Mitochondria were incorporated into eukaryotes after chloroplasts.

Quizplus · Accepted Answer

It is believed that chloroplasts were incorporated into eukaryotes before mitochondria. This is supported by the fact that all photosynthetic eukaryotes (plants, algae) have chloroplasts, but not all eukaryotes have mitochondria. Additionally, chloroplasts have their own DNA and ribosomes, similar to bacteria, which suggests they were originally free-living organisms that were engulfed by a host cell through endosymbiosis. Mitochondria also have their own DNA and ribosomes, but the evidence suggests that they were likely incorporated into eukaryotes after chloroplasts.

​Mitochondria Were Incorporated into Eukaryotes After Chloroplasts

Mitochondria Were Incorporated into Eukaryotes After Chloroplasts