Hey there!
Random fact: The carotenoids have 2 IMPORTANT functions. Which are: #1 CONTRIBUTION of PHOTOSYNTHESIS & #2 PROTECTION of PLANTS
Answer: the contribution of the photosynthesis moves the light from the energy so that it can soak up to the chlorophyll which can take the energy handle their photosynthesis ; for the first protection of the plants that have vulgarized to the light (sunlight)
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)