12. Very short answer II

The cell organelles that contain pigments of different colours are known as plastidsMitochondria. Some of them are green in colour due to a green colour pigment known as chlorophyllhemocyanin. These green colour plastids are known as chloroplastsleucoplasts.

 

It is the cell organelles that can produce food from solar energyenzymes and absorptive materials. Hence, they are known as the consumers of the cellProducers of the cell. Only the plants that contain chloroplasts can synthesize their food through TranslationPhotosynthesis.