[Campbell Biology P.244] Which of the following statements about carotenoids is TRUE? | Practice Question
Which of the following statements about carotenoids is TRUE?
A: Carotenoids primarily absorb red and orange light.
B: The most important function of carotenoids in plants is to broaden the spectrum of light absorbed for photosynthesis.
C: Carotenoids protect chlorophyll from damage by dissipating excessive light energy as heat.
D: Carotenoids are synthesized by humans, particularly for aiding night vision.
Explanation
Carotenoids are accessory pigments that serve a crucial role in photoprotection. They absorb and dissipate excessive light energy that would otherwise damage chlorophyll and form reactive oxidative molecules, thus protecting the plant cell.