Orange natural objects The orange colour of carrots, pumpkins, sweet potatoes, oranges, and many other fruits and vegetables comes from carotenes, a type of photosynthetic pigment. These pigments convert the light energy that the plants absorb from the sun into chemical energy for the plants' growth. The carotenes themselves take their name from the carrot. Autumn leaves also get their orange colour from carotenes. When the weather turns cold and production of green chlorophyll stops, the orange colour remains.
orange natural objects the orange colour of carrots pumpkins sweet potatoes oranges and many other fruits and vegetables comes from carotenes a type of photosynthetic pigment these pigments convert the light energy that the plants absorb from the sun into chemical energy for the plants' growth the carotenes themselves take their name from the carrot autumn leaves also get their orange colour from carotenes when the weather turns cold and production of green chlorophyll stops the orange colour remains