What is the primary function of chloroplasts?

Chlorophyll is a pigment that gives plants their green color, and it is the main receptor for sunlight within the organelle. The stroma is another part of the makeup of chloroplasts, and it is where carbon dioxide is changed into the sugar the plant needs to survive. 

 Chloroplasts are protected by a double membrane that keeps all of the internal structures contained and safe from the environment in the rest of the plant cell.

/the trachea, commonly known as the windpipe