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 ...

The researchers focused on a plastid-specific energy-transport molecule and found evidence suggesting that early chloroplasts ...

This proposed origin of mitochondria and chloroplasts is known as the endosymbiotic ... and oxidative metabolism yields more energy per food molecule than non-oxygen-using, or anaerobic, methods.