色素吸收特定波长的lightand reflect others.

Most photosynthetic pigments are not soluble in water and therefore can only be eluted using non-polar solvents.

Chlorophyll, for example, can be found in allphotosynthesizingplants and algae. It absorbs light between 400-500 nm and 600-700 nm, depending on the structural groups attached to the porphyrin ring. As you can easily guess from its structure below, chlorophyll is hydrophobic.