Answer:
Pigments
Explanation:
The term pigment derives from the Latin pigmentum, which means "substance that produces color".
Pigments provide color to cells and tissues.
In vegetables, we can find different pigments, such as chlorophyll or carotenoids, among others. Plants use these pigments during the photosynthesis process to absorb sunlight and fixate carbon dioxide. Stem color, flower color, and other tissue colors are defined by pigments on their cells.
Animal cells also have pigments that provide color to tissues like the hair, the skin, or the eyes.
Pigments are, basically, chemical molecules that produce color by the selective absorption of sunlight. They absorb light of certain wavelengths and reflect other wavelengths. The color expressed is the product of the reflection.
Many pigments have other functions, such as catalyze for some reactions. They accelerate or facilitate chemical reactions.
Pigments can be differentiated into two groups:
