The molecule that uses the energy has been designated the reaction center of the system. The other pigment molecules are termed antenna pigments. Electron flow is initiated and the work of photosynthesis has begun. Carotene is also a pigment found in the chlorophyll. It also functions to absorb light and transfer it to the reaction center.
Carotene belongs to a group of pigments known as carotenoids.
It gives the color to carrots, yellow squash etc. Biological Switches Plants contain a pigment that can function to germinate seed or delay flowering. This pigment is known as phytochrome. Harry A. Borthwick and his colleagues published their discoveries of this pigment in 1952. 2 Research continues to be done on this pigment, some of which has been published in the Proceedings of the National Academy of Sciences .