One of the most momentous events in the history of life involved endosymbiosis—a process by which one organism engulfed ...

Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...

Scientists found molecular evidence supporting the idea that chloroplasts originated as energy-generating organelles and only later evolved to support carbon assimilation in plant cells.

Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed ...

The next step—ensuring chloroplasts can survive longer in animal cells. In the study, the researchers inserted energy-making chloroplasts from a rare red algae into Chinese hamster cells ...

Chloroplasts are believed to have evolved from photosynthetic cyanobacteria, but it isn’t clear what functions the cyanobacteria originally performed for the cells that engulfed them ...